AMS Sectional Meeting Full Program
Current as of Tuesday, April 12, 2005 15:09:47
1998 Spring Southeastern Sectional Meeting
Louisville, KY, March 2021, 1998
Meeting #931
Associate secretaries: Robert J Daverman, AMS daverman@math.utk.edu
Unscheduled

Unscheduled
Invited Address 
Unscheduled
Invited Address 
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Invited Address 
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Invited Address 
Unscheduled
Invited Address
Friday March 20, 1998

Friday March 20, 1998, 7:30 a.m.5:00 p.m.
Meeting Registration
Lobby, Founder's Union Building 
Friday March 20, 1998, 8:00 a.m.10:50 a.m.
Special Session on Combinatorics and Graph Theory, I
Room 157, Burhans Hall
Organizers:
Andre E. Kezdy, University of Louisville aekezd01@homer.louisville.edu
Grzegorz Kubicki, University of Louisville gmkubi01@homer.louisville.edu
Jenoe Lehel, University of Louisville j0lehe01@homer.louisville.edu

8:00 a.m.
Orienting ternary matroids.
Jon Lee*, University of Kentucky
(93105125) 
8:30 a.m.
On the number of elements in matroids with fixed circuit and cocircuit sizes.
Talmage J Reid*, University of Mississippi
Tristan M.J. Denley, University of Mississippi
(9310565) 
9:00 a.m.
On a class of algebraically defined graphs.
Felix Lazebnik*, University of Delaware
(9310552) 
9:30 a.m.
Eigenvalues and the existence of small regular graphs of specified girth.
Allen J. Schwenk*, Western Michigan University
(93105285) 
10:00 a.m.
Covering a graph with cuts of minimum total size.
Andre Kundgen*, University of Illinois
(93105184) 
10:30 a.m.
Connectivity interpolation for 2cell embeddings.
Michael D. Plummer*, Vanderbilt University
Xiaoya Zha, Middle Tennessee State University
(93105248)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.10:50 a.m.
Special Session on Fractal Geometry and Related Topics, I
Room 160, Burhans Hall
Organizers:
KaSing Lau, University of Pittsburgh lauks+@pitt.edu
Weibin Zeng, University of Louisville wbzeng01@ulkyvx.louisville.edu

8:00 a.m.
Genralized SelfSimilar Functions.
Carlos A Cabrelli, University of Buenos Aires
Falsetti C Marcela, Univ. de Gral. Sarmiento
Ursula M Molter*, University of Buenos Aires
(93126158) 
8:30 a.m.
Cantor sets of bounded rates.
Carlos Cabrelli*, University of Buenos Aires
Kathryn E Hare, University of Waterloo
Ursula M Molter, University of Buenos Aires
(93128157) 
9:00 a.m.
Secondorder selfsimilar identities.
SzeMan Ngai*, Cornell University
(93128131) 
9:30 a.m.
The Multifractal Structure of Convolution of Cantor Measures.
TianYau Hu, Univ. of Wisconsin, Green Bay, WI 54311
KaSing Lau*, Univ. of Pittburgh, Pittsburgh, Pa 15260/ The Chinese University of Hong Kong, H.K.
(93128177) 
10:00 a.m.
Exact Hausdorff dimensions of overlapping selfsimilar sets.
Yang Wang*, Georgia Institute of Technology
Robert Strichartz, Cornell University
(93142209) 
10:30 a.m.
Orthonormal Bases of Exponentials for the nCube.
Jeffrey C Lagarias*, AT&T Labs, Florham Park NJ
James A Reeds, AT&T Labs, Florham Park, NJ
Yang Wang, Georgia Institute of Technology, Atlanta, GA
(93146220)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.10:50 a.m.
Special Session on Semigroups, Algorithms, and Universal Algebra, I
Room 158, Burhans Hall
Organizers:
Ralph N. McKenzie, Vanderbilt University mckenzie@math.vanderbilt.edu
Steven Seif, University of Louisville swseif01@ulkyvx.louisville.edu

8:00 a.m.
Globals of groupless groupoids.
Kevin Blount*, Vanderbilt University
Ralph McKenzie, Vanderbilt University
(93120331) 
8:30 a.m.
Injective Completeness of Certain Categories of Commutative Regular Semigroups.
Yefim Katsov*, Hanover College
(93120115) 
9:00 a.m.
Varieties with few fintely generated algebras.
Joel Berman*, University of Illinois at Chicago
Pawe\l M. Idziak, Jagiellonian University
(93108107) 
9:30 a.m.
Second Centralizers of Transformations.
Janusz Konieczny*, Mary Washington College
(9312042) 
10:00 a.m.
The residual character of minimal varieties of type 5 .
Agnes Szendrei*, J\'ozsef Attila University
(93108251) 
10:30 a.m.
Bad threeelement algebras.
George F. McNulty*, University of South Carolina
Ross Willard, University of Waterloo
(93108301)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.10:30 a.m.
Special Session on The Use of the History of Mathematics and Science in the University and School Classroom, I
Room 15, Founder's Union Building
Organizers:
Richard M. Davitt, University of Louisville rmdavi01@ulkyvm.louisville.edu

8:00 a.m.
Compiling and Updating an Annotated Bibliography Concerning Things Mathematical.
Richard M Davitt*, Univ of Louisville
(93101119) 
8:40 a.m.
Problems and Projects from the History of Mathematics in Regular Mathematics Courses.
Daniel J. Curtin*, Northern Kentucky University
(9310131) 
9:20 a.m.
Pleasures and perils of using original sources in the history of mathematics course.
Daniel E. Otero*, Xavier University
(93198269) 
10:00 a.m.
Using History to Introduce Fractals.
John E Sasser*, University of Cincinnati, Cincinnati, Ohio
(93101327)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.10:50 a.m.
Special Session on Boundary Value Problems for Differential Equations, I
Room 159, Burhans Hall
Organizers:
Paul W. Eloe, University of Dayton eloe@saber.udayton.edu

8:00 a.m.
Multiple Positive Solutions of Singular Right Focal Boundary Value Problems.
Paul Eloe, University of Dayton
Johnny Henderson, Auburn University
William K.C. Yin*, LaGrange College
(93134108) 
8:30 a.m.
Uniqueness Implies Existence for Fourth Order Lidstone Boundary Value Problems.
John M. Davis*, Auburn University
Johnny Henderson, Auburn University
(93134121) 
9:00 a.m.
Boundary value problems for functionaldifference equations.
Anjali G Datta*, Tuskegee University
(93134149) 
9:30 a.m.
Positive Solutions for $n^{th}$ Order Functional Differential Equations.
Eric R Kaufmann*, University of Arkansas at Little Rock
(93134145) 
10:00 a.m.
Summation of functional series.
Andriy Mikolaevich Blazhievskiy*, Technological University of Podillia, Khmelnitsky, Ukraine
(9313512) 
10:30 a.m.
Extremal Properties of Eigenvalues.
Charlotte A. Knotts*, University of Tennessee at Knoxville
(93134203)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.10:50 a.m.
Special Session on Spectral Theory, Mathematical Physics, and Disordered Media, I
Room 1, Burhans Hall
Organizers:
Peter David Hislop, University of Kentucky hislop@ms.uky.edu
Gunter H. Stolz, University of Alabama at Birmingham stolz@vorteb.math.uab.edu

8:00 a.m.
Solutions, spectrum and dynamics of Schr\"odinger operators on infinite domains.
Alexander A Kiselev*, University of Chicago
Yoram Last, Caltech
(93181252) 
8:30 a.m.
Measurable enumeration of eigenelements of selfadjoint operators .
Alexander Y Gordon*, University of North Carolina at Charlotte
(9314730) 
9:00 a.m.
The essential spectrum of the Nuemann Laplacian on a tree imbedded in a domain.
W. D. Evans, University of School College of Cardiff
Yoshimi Sait\B o*, University of Alabama at Birmingham
(93135214) 
9:30 a.m.
Mourre Theory for a Schroedinger Operator on a Binary Tree Graph.
Christine S. Allard*, UBC, Vancouver
(93147130) 
10:00 a.m.
On the absolutely continuous spectrum of Jacobi matrices with powerlike weights.
Jan Janas*, Institute of Mathematics, Polish Academy of Sciences
Serguei Naboko, Dept. of Math. Phys., Inst. of Physics, SPetersburg Univ.
(93147169) 
10:30 a.m.
The analyticity of semigroups generated by degenerate elliptic operators.
Jerome A. Goldstein*, University of Memphis
(93147320)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.11:00 a.m.
Special Session on Geometry of Affine Space, I
Room 162, Burhans Hall
Organizers:
Gene Freudenburg, University of Southern Indiana freudenb.ucs@smtp.usi.edu
David Wright, Washington University wright@einstein.wustl.edu

8:00 a.m.
Nonlinearizable actions of reductive groups.
Gerald W. Schwarz*, Brandeis University
(93114237) 
8:40 a.m.
Moduli of $G$equivariant vector bundles over representations with twodimensional quotient: First Examples.
Kurt Mederer*, Mercersburg Academy
(93114280) 
9:10 a.m.
Nonlinearizable holomorphic group actions.
Harm Derksen*, Northeastern University
Frank Kutzschebauch, University of Basel
(93114290) 
9:50 a.m.
Reductive subgroups of $\hbox{Aut}\Bbb {A}^3$ and $\hbox{Aut}\Bbb {A}^4$.
Vladimir L. Popov*, MGIEM, B. Trekhsvyatitel'sk\v i per., 3/12, Moscow, 109028, Russia.
(9311468) 
10:30 a.m.
Equivariant cancellation problem.
Kayo Masuda*, Department of Mathematics, Himeji Institute of Technology
(93114132)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.10:50 a.m.
Special Session on Algebraic Combinatorics, I
Room 218A, Founder's Union Building
Organizers:
Anders Bjorner, Royal Institute of Technology bjorner@math.kth.se
Michelle L. Wachs, University of Miami wachs@math.miami.edu

8:00 a.m.
Counting faces of cubical spheres.
Eric K Babson*, Intitute for Advanced Study
(93105335) 
8:30 a.m.
Fiber polytopes for the projections between cyclic polytopes.
Christos A Athanasiadis*, University of Pennsylvania
Jesu's A De Loera, The Geometry Center and University of Minnesota
Victor Reiner, University of Minnesota
Francisco Santos, University of Cantabria
(93105126) 
9:00 a.m.
A type B associahedron.
Rodica Simion*, The George Washington University
(93105340) 
9:30 a.m.
Weights on AlmostSimple Polytopes.
Susan Foege, University of Kentucky
Carl W. Lee*, University of Kentucky
(93152271) 
10:00 a.m.
An Upper Bound Theorem for Rational Polytopes.
Margaret M Bayer*, University of Kansas
(93152297) 
10:30 a.m.
Rational function identities for posets and integer polyhedra.
Curtis Greene*, Haverford College, Haverford PA
(93105350)

8:00 a.m.

Friday March 20, 1998, 8:00 a.m.5:00 p.m.
Book Exhibit and Electronic Products Display
Lobby, Founder's Union Building 
Friday March 20, 1998, 8:30 a.m.10:50 a.m.
Special Session on Real Analysis, I
Room 163, Burhans Hall
Organizers:
Udayan B. Darji, University of Louisville ubdarj01@homer.louisville.edu
Lee Larson, University of Louisville lmlars01@homer.louisville.edu

8:30 a.m.
The Laplace Derivative.
Ralph E Svetic*, University of Wisconsin  Milwaukee
(9312619) 
9:00 a.m.
The Noncoincidence of Ordinary and Peano Derivatives.
Zolt\'an Buczolich, E\"otv\"os Lor\'and University
Clifford E. Weil*, Michigan State University
(9312626) 
9:30 a.m.
Making Borel functions seem continuous.
Slawomir J Solecki*, Indiana University
(93126183) 
10:00 a.m.
Homeomorphy of semicontinuous functions.
Jan J. Dijkstra*, The University of Alabama
Jan van Mill, Vrije Universiteit
(9312661) 
10:30 a.m.
Universally Polygonally Approximable functions (Preliminary report).
Michael J. Evans*, AMS
Richard J. O'Malley, UWM
(9312657)

8:30 a.m.

Friday March 20, 1998, 8:30 a.m.11:00 a.m.
Special Session on Applied Probability and Actuarial Science, I
Room 14, Founder's Union Building
Organizers:
Grzegorz Rempala, University of Louisville garemp01@homer.louisville.edu
Krzysztof Ostraszewski, University of Louisville kmosta01@homer.louisville.edu
Ewa M. Kubicka, University of Louisville
Bogdan Gapinski, University of Louisville

8:30 a.m.
Evaluating the Optimal Solution of Investment/Consumption Models in the Presence of Transaction Costs.
Richard H Stockbridge*, Department of Statistics,University of Kentucky. Lexington, KY 405060027
(9316074) 
9:10 a.m.
Actuarial aspects of the pension system reform in Poland.
Leslaw Gajek*, Technical University of {\L}\'od\'z
(9316076) 
9:50 a.m.
Stochastic Simulation Model for Social Security.
Michael Sze*, Hewitt Associates (retired)
(9316077) 
10:30 a.m.
Generalized CIR model. Martingale Approach.
Wojciech Szatzschneider*, School of Actuarial Sciences An\'ahuac University. M\'exico
Jose Garrido, Concordia University
(9316078)

8:30 a.m.

Friday March 20, 1998, 8:30 a.m.10:50 a.m.
Special Session on Modern Function Theory, I
Room 164, Burhans Hall
Organizers:
David Minda, University of Cincinnati david.minda@math.uc.edu
David A. Herron, University of Cincinnati david.herron@math.uc.edu

8:30 a.m.
Fusion and separation of singularities of analytic functions.
Victor Petrovich Havin, McGill University
Ashot H. Nersessian*, McGill University, Montreal, Quebec, Canada
(93130265) 
9:00 a.m.
Twopoint comparisons between hyperbolic and euclidean geometry on plane regions.
William Ma*, Pennsylvania College of Technology
Fumio Maitani, Kyoto Institute of Technology
David Minda, University of Cincinnati
(93130143) 
9:30 a.m.
Real analogs of univalence criteria involving the preschwarzian.
Martin S Chuaqui*, P. Universidad Catolica de Chile
(93130217) 
10:00 a.m.
Finding complete conformal metrics to extend conformal mappings.
Martin Chuaqui, Universidad Catolica
Brad Osgood*, Stanford University
(93130333) 
10:30 a.m.
Biholomorphic mappings in several variables.
John A Pfaltzgraff*, University of North Carolina
Ted J Suffridge, University of Kentucky
(93132205)

8:30 a.m.

Friday March 20, 1998, 9:00 a.m.10:50 a.m.
Special Session on Functional Equations and Inequalities, I
Room 156, Burhans Hall
Organizers:
Thomas Riedel, University of Louisville t0ried01@homer.louisville.edu
Prasanna Sahoo, University of Louisville pksaho01@homer.louisville.edu

9:00 a.m.
Some Cauchylike functional equations on the natural numbers.
Tom M.K. Davison*, McMaster University
(93139128) 
9:30 a.m.
The Cocycle Equation on Periodic Semigroups.
Thomas M Davison, McMaster University
Bruce R Ebanks*, Marshall University
(93139188) 
10:00 a.m.
Mixing vs. chaotic behavior for automorphisms of the ntorus.
A. Sklar*, 5044 Marine Drive, Chicago, IL 60640
(93139215) 
10:30 a.m.
Rational tnorms and copulas.
M J Frank, Illinois Institute of Technology
B Schweizer*, University of Massachusetts
(93139160)

9:00 a.m.

Friday March 20, 1998, 9:00 a.m.10:50 a.m.
Special Session on Banach Space Theory, I
Room 8, Burhans Hall
Organizers:
Patrick N. Dowling, Miami University, Ohio pndowling@miavx1.acs.muohio.edu
Beata Randrianantoanina, Miami University, Ohio randrib@muohio.edu

9:00 a.m.
The $w^*$topology on $\ell_1$ induced by the BourgainDelbaen space.
Dale E. Alspach*, Oklahoma State University
(93146264) 
9:30 a.m.
Indices, convexity and concavity in some nonsymmetric spaces.
Anna H. Kami\'nska*, The University of Memphis
(93146334) 
10:00 a.m.
$MM^*$ estimate for the sections of nonsymmetric convex bodies.
Mark Rudelson*, Texas A \& M University
(93146129) 
10:30 a.m.
Bijective disjointness preserving operators.
Yuri A Abramovich*, IUPUI
Arkady K Kitover, CCP
(93147159)

9:00 a.m.

Friday March 20, 1998, 9:00 a.m.10:50 a.m.
Special Session on Spectral Geometry, I
Room 3, Burhans Hall
Organizers:
Ruth Gornet, Texas Tech University gornet@math.ttu.edu
Peter Anton Perry, University of Kentucky perry@ms.uky.edu

9:00 a.m.
The dispersionless Toda equation and Toeplitz operators.
Alejandro Uribe*, University of Michigan
(93158216) 
9:30 a.m.
Vibrating Strings and Cylinders with Variable Mass Density.
Richard Snyder Laugesen*, University of Illinois, UrbanaChampaign
(9313591) 
10:00 a.m.
The spectrum of the Hodge Laplacian for three manifolds with pinched negative curvature.
Jeffrey K McGowan*, Central Connecticut State University
Ruth Gornet, Texas Tech/University of Kentucky
(93158174) 
10:30 a.m.
Heat kernel and Green function estimates on noncompact symmetric spaces.
Lizhen Ji*, University of Michigan
(93158111)

9:00 a.m.

Friday March 20, 1998, 9:00 a.m.10:50 a.m.
Special Session on LowDimensional Topology, I
Room 161, Burhans Hall
Organizers:
Abigail A. Thompson, University of California, Davis thompson@math.ucdavis.edu
Martin Scharlemann, University of Califronia, Santa Barbara mgscharl@math.ucsb.edu

9:00 a.m.
Arnoldtype invariants of curves on surfaces and homotopy groups of the space of curves.
Vladimir V Tchernov*, Uppsala University, Sweden
(9315787) 
9:30 a.m.
Infinite Coxeter groups are virtually indicable.
D Cooper, UC Santa Barbara
D D Long*, UC Santa Barbara
A W Reid, UT Austin
(9315713) 
10:00 a.m.
Invariants of Heegaard Splittings.
Doug Bullock, Boise State University
Charles Frohman*, The University of Iowa
Joanna KaniaBartoszynska, Boise State University
(9315784) 
10:30 a.m.
Almost Normal Surfaces with Boundary in 3Manifolds .
Michelle M Stocking*, University of Texas, Austin
(9315740)

9:00 a.m.

Friday March 20, 1998, 11:10 a.m.12:00 p.m.
Invited Address
The combinatorial topology of graph properties.
Room 218, Founder's Union Building
Anders Bj\"orner*, Dept. of Mathematics, Royal Institute of Technology, Stockholm, Sweden
(93105322) 
Friday March 20, 1998, 1:40 p.m.2:30 p.m.
Invited Address
The X, Y, Z's in the characterization problem for derivatives.
Room 218, Founder's Union Building
Andrew Bruckner*, University of California at Santa Barbara 
Friday March 20, 1998, 2:45 p.m.6:35 p.m.
Special Session on Combinatorics and Graph Theory, II
Room 157, Burhans Hall
Organizers:
Andre E. Kezdy, University of Louisville aekezd01@homer.louisville.edu
Grzegorz Kubicki, University of Louisville gmkubi01@homer.louisville.edu
Jenoe Lehel, University of Louisville j0lehe01@homer.louisville.edu

2:45 p.m.
the maxi,um number of cyclic triples in oriented planar graphs.
Sheng Bau, Inner Mongolia Finance and Economics College
Lowell W. Beineke*, Indiana UniversityPurdue University
(93105295) 
3:15 p.m.
Bicliques in Graphs.
Erich Prisner*, Mathematisches Seminar, Universit\"at Hamburg
(93105207) 
3:45 p.m.
Decomposition of evenholefree graphs.
Michele Conforti, Universita di Padova
Gerard Cornuejols, Carnegie Mellon University
Ajai Kapoor, Carnegie Mellon University
Kristina Vuskovic*, University of Kentucky
(9310570) 
4:15 p.m.
Crossings in drawings of complete graphs.
Heiko Harborth*, Diskrete Mathematik
(93105170) 
4:45 p.m.
Hamiltonian graphs and arithmetic progressions of cycles.
Tristan MJ Denley*, University of Mississippi
Alex D Scott, University College London
(93105213) 
5:15 p.m.
Small vertexdoublecovered graphs.
Zolt\'an F\"uredi, University of Illinois
Dhruv Mubayi, University of Illinois
Douglas B West*, University of Illinois
(93105300) 
5:45 p.m.
Nonrevisiting Cycles On Surfaces.
Hari Pulapaka*, Valdosta State University
(9310518) 
6:15 p.m.
Tutte cycles in circuit graphs.
Jason Gao, Carleton University
Xingxing Yu*, Georgia Tech
(93105347)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.6:35 p.m.
Special Session on Fractal Geometry and Related Topics, II
Room 160, Burhans Hall
Organizers:
KaSing Lau, University of Pittsburgh lauks+@pitt.edu
Weibin Zeng, University of Louisville wbzeng01@ulkyvx.louisville.edu

2:45 p.m.
Let's do analysis on fractals!
Robert S Strichartz*, Cornell University
(93135266) 
3:15 p.m.
Dense analytic subspaces in fractal $L^{2}$spaces.
Palle E.T. Jorgensen*, University of Iowa
(9314206) 
3:45 p.m.
Harmonic Analysis of Fractal Measures.
Steen Pedersen*, Wright State University
(93142232) 
4:15 p.m.
heat kernel estimates for Laplacians on p. c. f. selfsimilar sets.
Jun Kigami*, Kyoto University
(93160181) 
4:45 p.m.
Complex Dimensions of Fractals.
Michel L. Lapidus*, University of CaliforniaRiverside
(93128281) 
5:15 p.m.
Fourier asymptotic of statistically selfsimilar measures.
Christian E. Bluhm*, Cornell University
(93128153) 
5:45 p.m.
Spectral Analysis on Infinite Sierpinski Gaskets.
Alexander Teplyaev*, Cornell University
(93135287) 
6:15 p.m.
Sierpi\'{n}ski gasket as a Martin boundary.
Manfred Denker, University of G\"ottingen
Hiroshi Sato*, Kyushu University
(93160103)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.5:05 p.m.
Special Session on Functional Equations and Inequalities, II
Room 156, Burhans Hall
Organizers:
Thomas Riedel, University of Louisville t0ried01@homer.louisville.edu
Prasanna Sahoo, University of Louisville pksaho01@homer.louisville.edu

2:45 p.m.
Surprising Results on a Functional Equation Arising from Utility Theory.
J\'{a}nos D. Acz'{e}l*, University of Waterloo
Roman Ger, Silesian University
Antal J\'{a}rai, E\"{o}tv\"{o}s University
(9313923) 
3:15 p.m.
Some Functional Equations Arising From Problems in Physics.
Michael D. Taylor*, University of Central Florida
(9313948) 
3:45 p.m.
A Wirtinger type Inequality, Pontryagin Optimality Principle and a ThreePoint Boundary Value Problem.
Chaitan P Gupta*, Univ of Nevada, Reno
Sergej I Trofimchuk, Nat. Acad of Sciences
(9313443) 
4:15 p.m.
On inner product spaces and Jordan derivation.
PL Kannappan*, University of Waterloo
(9313941) 
4:45 p.m.
The Aggregation Equation: Solutions on Cancellative Monoids.
Mark A Taylor*, Acadia University
(9313937)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.6:05 p.m.
Special Session on Banach Space Theory, II
Room 8, Burhans Hall
Organizers:
Patrick N. Dowling, Miami University, Ohio pndowling@miavx1.acs.muohio.edu
Beata Randrianantoanina, Miami University, Ohio randrib@muohio.edu

2:45 p.m.
a theorem of littlewood, a la grothendieck.
Joe Diestel*, kent state uni
(93146348) 
3:15 p.m.
Hereditarily Hypercyclic Operators and the Hypercyclicity Criterion.
Juan P Bes*, Kent State University
(9314769) 
3:45 p.m.
On some properties of the quasiconvex bodies.
Alexander Eugeniy Litvak*, University of Alberta, Edmonton, AB, Canada, T6G 2G1.
(93146293) 
4:15 p.m.
Blocking of FDD's.
Edward Odell*, University of Texas at Austin
Helmut Knaust, University of Texas at El Paso
Thomas Schlumprecht, Texas A\&M University
(93146123) 
4:45 p.m.
Higher order asymptotic structure.
Robert P Judd*, Oklahoma State University
Edward Odell, The University of Texas at Austin
(93146259) 
5:15 p.m.
Weak* closure ordinals of convex subsets of duals of separable Banach spaces.
Douglas Mupasiri*, University of Northern Iowa
(93146336) 
5:45 p.m.
Signal Reconstruction via Alternating Projections.
Charles Kicey, Valdosta State University
Chris Lennard*, University of Pittsburgh
(93146315)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.4:35 p.m.
Special Session on Real Analysis, II
Room 163, Burhans Hall
Organizers:
Udayan B. Darji, University of Louisville ubdarj01@homer.louisville.edu
Lee Larson, University of Louisville lmlars01@homer.louisville.edu

2:45 p.m.
Some cardinal invariants related to adding functions in Baire class 1.
Francis Edmund Jordan*, West Virginia University
(9312653) 
3:15 p.m.
Darboux Quasicontinuous Functions.
Harvey Rosen*, University of Alabama
(93126261) 
3:45 p.m.
Extending connectivity functions.
Jerzy Wojciechowski*, West Virginia University
(9312658) 
4:15 p.m.
$\kappa  to  1$ \ Darboux Like Functions.
Richard G. Gibson*, Columbus State University, Columbus, Georgia
Krzysztof Ciesielski, West Virginia University
Tomasz Natkaniec, Gdansk University
(9312622)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.6:35 p.m.
Special Session on Semigroups, Algorithms, and Universal Algebra, II
Room 158, Burhans Hall
Organizers:
Ralph N. McKenzie, Vanderbilt University mckenzie@math.vanderbilt.edu
Steven Seif, University of Louisville swseif01@ulkyvx.louisville.edu

2:45 p.m.
The variety generated by tournaments.
Jaroslav Jezek, Charles University
Petar Markovic, Vanderbilt University
Miklos Maroti*, Vanderbilt University
Ralph McKenzie, Vanderbilt University
(93108323) 
3:15 p.m.
Residually Small Equational Classes.
Matt Valeriote*, Mathematics Department
(93108226) 
3:45 p.m.
A new construction for free inverse semigroups.
Olga V. Poliakova, University of Arkansas
Boris M. Schein*, University of Arkansas
(93120179) 
4:15 p.m.
An Equational Characterization of Residuated Lattices that are Subdirect Products of Chains.
Constantine Tsinakis*, Vanderbilt University
(93106254) 
4:45 p.m.
The Classification of Commutative Minimal Clones.
Keith A. Kearnes*, University of Louisville
Agnes Szendrei, Bolyai Institute
(93108284) 
5:15 p.m.
Complexity problems for matrix rings, matrix semigroups and Rees matrix semigroups.
Steve Seif, University of Louisville
Csaba Szab\'o*, McMaster University
(93108223) 
5:45 p.m.
Fregean Logics and Fregean Quasivarieties.
Don L. Pigozzi*, Iowa State University
Janusz Czelakowski, Opole University
(93108206) 
6:15 p.m.
Decidability Results for Finite Semigroups.
Mark Sapir*, Vanderbilt University
(93120250)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.5:15 p.m.
Special Session on The Use of the History of Mathematics and Science in the University and School Classroom, II
Room 15, Founder's Union Building
Organizers:
Richard M. Davitt, University of Louisville rmdavi01@ulkyvm.louisville.edu

2:45 p.m.
Equation Solving  Pleminary Report.
Bill R Austin*, U. TennesseeMartin
(93101161) 
3:25 p.m.
Teaching Euler's Introductio in Analysin Infinitorium a Quarter of a Millenium After.
Lin Tan*, West Chester University
(93101268) 
4:05 p.m.
Newton's Arithmetica Universalis.
Rebecca A Berg*, Bowie State University, Bowie, Maryland
(93101192) 
4:45 p.m.
Learning From The Masters: Using Original Sources in the Classroom.
Herbert E. Kasube*, Bradley University
(9310162)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.6:05 p.m.
Special Session on Boundary Value Problems for Differential Equations, II
Room 159, Burhans Hall
Organizers:
Paul W. Eloe, University of Dayton eloe@saber.udayton.edu

2:45 p.m.
Asymptotic Boundary Value Problems in a Time Almost Periodic Bistable Nonlinear Equation.
Wenxian Shen*, Auburn University
(9313598) 
3:15 p.m.
On global bifurcation at infinity of variational inequalities.
Vy K Le*, University of Missouri
Klaus Schmitt, University of Utah
(9313596) 
3:45 p.m.
New Developments on the SturmLiouville Theory: ODE's and PDE's .
XueFeng Yang*, GA Tech
(93135168) 
4:15 p.m.
Dynamics of Traveling Wave Solutions of DifferentialDifference Equations.
Erik S Van Vleck*, Colorado School of Mines
(93139191) 
4:45 p.m.
Theta Functions on Degenerate Hyperelliptic Surfaces.
D David McRae*, The Woodberry Forest School
Rudi Weikard, University of Alabama at Birmingham
(93133175) 
5:15 p.m.
Quenching for Degenerate Semilinear Parabolic Problems.
Chiu Yeung Chan*, University of Southwestern Louisiana
(93135106) 
5:45 p.m.
Effects of Heat Input and Output on Quenching.
S. I. Yuen*, Lakeland Community College
(93135105)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.5:35 p.m.
Special Session on Spectral Geometry, II
Room 3, Burhans Hall
Organizers:
Ruth Gornet, Texas Tech University gornet@math.ttu.edu
Peter Anton Perry, University of Kentucky perry@ms.uky.edu

2:45 p.m.
Locally nonisometric yet super isospectral spaces;The full exploration.
Zoltan I Szabo*, Lehman College of The City University of New York
(93158309) 
3:15 p.m.
Continuous families of isospectral Riemannian metrics which are not locally isometric.
Carolyn S. Gordon, Dartmouth College
Edward N. Wilson*, Washington University
(93153313) 
3:45 p.m.
The Length Spectrum of Riemannian TwoStep Nilmanifolds.
Maura B Mast*, University of Northern Iowa
(93158236) 
4:15 p.m.
Riemannian foliations and eigenvalue comparison.
Jeffrey M. Lee*, Texas Tech University
Ken Richardson, Texas Christian University
(93153224) 
4:45 p.m.
Isoperimetric Problem for the curl operator.
Jason Cantarella, University of Pennsylvania
Dennis DeTurck, University of Pennsylvania
Herman Gluck, University of Pennsylvania
Mikhail Teytel*, University of Pennsylvania
(9314695) 
5:15 p.m.
Scattering theory and hyperbolic 3manifolds.
David Borthwick*, Emory University
(93158190)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.5:35 p.m.
Special Session on Spectral Theory, Mathematical Physics, and Disordered Media, II
Room 1, Burhans Hall
Organizers:
Peter David Hislop, University of Kentucky hislop@ms.uky.edu
Gunter H. Stolz, University of Alabama at Birmingham stolz@vorteb.math.uab.edu

2:45 p.m.
On the essential spectrum of some singular systems of matrix differential operator related to the MHD problems.
Sergeui Naboko*, Dept. of Math. Physics, Institute of Physics, SPetersburg University
(93147148) 
3:15 p.m.
New models in the localization theory.
Stanislav A. Molchanov*, University of North Carolina at Charlotte
(93181219) 
3:45 p.m.
On the Density of States for a Periodic Schr\"{o}dinger Operator.
Yulia Karpeshina*, University of Alabama at Birmingham
(93181241) 
4:15 p.m.
Quantum Stability of Hamiltonians with decreasing gaps.
James S. Howland*, Univ. of Virginia
(93181274) 
4:45 p.m.
Complex measures in random Schroedinger operators.
WeiMin Wang*, Institute for Advanced Study
(93147317) 
5:15 p.m.
On spectral properties of photonic crystals.
Peter Kuchment*, Wichita State University
Leonid Kunyansky, Wichita State University
(93135270)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.5:55 p.m.
Special Session on Geometry of Affine Space, II
Room 162, Burhans Hall
Organizers:
Gene Freudenburg, University of Southern Indiana freudenb.ucs@smtp.usi.edu
David Wright, Washington University wright@einstein.wustl.edu

2:45 p.m.
Affine rulings of rational surfaces: a reduction theorem.
Daniel Daigle*, University of Ottawa
(93114257) 
3:25 p.m.
Affine rulings of weighted projective planes.
Peter Russell*, McGill University
(93114258) 
4:05 p.m.
A PublicKey Scheme With Signature and Master Key Functions.
TzuongTsieng Moh*, Purdue University
(93114141) 
4:45 p.m.
\'{E}tale endomorphisms of smooth affine surfaces.
Masayoshi Miyanishi*, Department of Mathematics, School of Science, Osaka University
(93114102) 
5:25 p.m.
Homology planes with pencils of rational curves.
Toru Sugie*, Faculty of Education, Shiga University
(93114104)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.6:05 p.m.
Special Session on Algebraic Combinatorics, II
Room 218A, Founder's Union Building
Organizers:
Anders Bjorner, Royal Institute of Technology bjorner@math.kth.se
Michelle L. Wachs, University of Miami wachs@math.miami.edu

2:45 p.m.
Algebraic shifting increases relative homology.
Art Duval*, University of Texas at El Paso
(93105239) 
3:15 p.m.
Group actions on posets.
Dmitry Kozlov*, MIT
(93105346) 
3:45 p.m.
ELshellability of rankselected posets.
Larry Liu, Michigan State University
Bruce E Sagan*, Michigan State University
(93106311) 
4:15 p.m.
Homology of monomial ideals and order dimension of lattices.
Irena Peeva, MIT
Vic Reiner, University of Minnesota
Volkmar Welker*, Universitaet Essen
(93105109) 
4:45 p.m.
Combinatorial Laplacians of matroid complexes .
Woong Kook, Univ. of Minnesota
Victor Reiner*, Univ. of Minnesota
Dennis Stanton, Univ. of Minnesota
(9310533) 
5:15 p.m.
A convolution formula for the Tutte polynomial.
Woong Kook, Univ. of Minnesota
Victor Reiner, Univ. of Minnesota
Dennis Stanton*, Univ. of Minnesota
(9310534) 
5:45 p.m.
Flag Matroids.
Alexandre V. Borovik, UMIST
Israel M. Gelfand, Rutgers University
Neil L. White*, University of Florida
(9310550)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.4:35 p.m.
Special Session on Applied Probability and Actuarial Science, II
Room 14, Founder's Union Building
Organizers:
Grzegorz Rempala, University of Louisville garemp01@homer.louisville.edu
Krzysztof Ostraszewski, University of Louisville kmosta01@homer.louisville.edu
Ewa M. Kubicka, University of Louisville
Bogdan Gapinski, University of Louisville

2:45 p.m.
Random Walks on special graphs and Cryptography.
Vasiliy A Ustimenko*, University of KyivMohyla Academy, Kyiv 254070, Ukraine and Delaware University, Newark, DE 19716
(9316079) 
3:25 p.m.
N person sequential selection of optimal contract.
Krzysztof Szajowski*, Institute of Mathematics, Wroclaw University of Technology
(9319099) 
4:05 p.m.
Probability of Ruin with Variable Premium Rate in a Markovian Environment.
Helena Jasiulewicz*, Institute of Mathematics, Wroc{\l}aw University of Technology
(9319093)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.6:05 p.m.
Special Session on Modern Function Theory, II
Room 164, Burhans Hall
Organizers:
David Minda, University of Cincinnati david.minda@math.uc.edu
David A. Herron, University of Cincinnati david.herron@math.uc.edu

2:45 p.m.
Conjectures about integral means of formal complex derivatives in the plane.
Albert Baernstein, II*, Washington University, St.Louis, MO 63130
Stephen John MontgomerySmith, University of Missouri, Columbia, Missouri, 652110001
(93130201) 
3:15 p.m.
Global holomorphic dependence of quasiconformal mappings on Beltrami differentials.
Hiroshi Yanagihara*, Yamaguchi University
(93130243) 
3:45 p.m.
On pseudospheres that are quasispheres.
John L Lewis*, University of Kentucky
Andrew L Vogel, Syracuse University
(93130120) 
4:15 p.m.
Lusin's Condition (N) for Locally Quasisymmetric Mappings from Euclidean Domains.
Jeremy T. Tyson*, University of Michigan
(93130221) 
4:45 p.m.
Growth of Analytic Functions in John Disks.
Navah Langmeyer*, Department of Defense
(93130136) 
5:15 p.m.
Quasisymmetrically Thick Sets.
Susan G Staples*, Texas Christian University
Lesley A Ward, Harvey Mudd College
(93130152) 
5:45 p.m.
Some domain constants related to quasiconformal mappings.
Shanshuang YANG*, Emory University, Atlanta GA 30322
(93130163)

2:45 p.m.

Friday March 20, 1998, 2:45 p.m.5:05 p.m.
Special Session on LowDimensional Topology, II
Room 161, Burhans Hall
Organizers:
Abigail A. Thompson, University of California, Davis thompson@math.ucdavis.edu
Martin Scharlemann, University of Califronia, Santa Barbara mgscharl@math.ucsb.edu

2:45 p.m.
Alternating Graphs.
Colin Adams*, Williams College
(93157198) 
3:15 p.m.
A survey of symmetric knots.
Morwen B Thistlethwaite*, University of Tennessee
(9315786) 
3:45 p.m.
TwoGenerator Satellite Links.
Steven A Bleiler, Portland State University
Amelia C Jones*, Vassar College
(9315767) 
4:15 p.m.
Crossing number of thick knots.
Jonathan K Simon*, University of Iowa
Gregory R Buck, St. Anselm College
(9315717) 
4:45 p.m.
Pseudofree group actions on $S^2 x S^2$.
Michael P McCooey*, Indiana University, Bloomington
(93157344)

2:45 p.m.
Saturday March 21, 1998

Saturday March 21, 1998, 7:30 a.m.12:00 p.m.
Meeting Registration
Lobby, Founder's Union Building 
Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Combinatorics and Enumerative Geometry, I
Room 2, Burhans Hall
Organizers:
Kequan Ding, University of Illinois, UrbanaChampaign kding@math.uiuc.edu
Chi Wang, University of Louisville c0wang01@ulkyvx.louisville.edu

8:00 a.m.
Lusztig's Conjecture and Geometry of the Jantzen Region.
Brian D. Boe*, University of Georgia
(93151208) 
8:30 a.m.
Enumeration of spanning trees of the quartered Aztec diamond .
Mihai A Ciucu*, Institute for Advanced Study
(93105307) 
9:00 a.m.
Superschemes and $t$vertex Condition Graphs.
Jerzy Wojdylo*, Iowa State University
(93105196) 
9:30 a.m.
Decompositions of partially ordered sets.
Louis J Billera, Cornell University
G\'abor Hetyei*, University of Kansas
(93105199) 
10:00 a.m.
Enumeration of plane $m$colored cacti according to their vertexdegree distributions.
Mikl\'os B\'ona, LaCIM, Universit\'e du Qu\'ebec \`a Montr\'eal
Michel Bousquet, LaCIM, Universit\'e du Qu\'ebec \`a Montr\'eal
Gilbert Labelle, LaCIM, Universit\'e du Qu\'ebec \`a Montr\'eal
Pierre Leroux*, LaCIM, Universit\'e du Qu\'ebec \`a Montr\'eal
(93105222) 
10:30 a.m.
On the Coefficients of Binary Bent Functions.
Xiangdong Hou*, Wright State University, Dayton, OH 45435
(9310525)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Combinatorics and Graph Theory, III
Room 157, Burhans Hall
Organizers:
Andre E. Kezdy, University of Louisville aekezd01@homer.louisville.edu
Grzegorz Kubicki, University of Louisville gmkubi01@homer.louisville.edu
Jenoe Lehel, University of Louisville j0lehe01@homer.louisville.edu

8:00 a.m.
A Random Disease Problem.
Jozsef Balog*, The University of Memphis
Gabor Pete, JATE , U. of Szeged
(93105277) 
8:30 a.m.
On the Limit Probabilities of the First Order Properties of Graphs.
Lubos Thoma*, Institute for Advanced Study
(93105343) 
9:00 a.m.
A Generalization of Tur\'{a}n's Theorem for RealWeighted Graphs.
John Allen Kuchenbrod*, University of Kentucky
(93105210) 
9:30 a.m.
The Stress Spaces of Bipartite Frameworks.
Kevin M Peterson*, Columbus State University
(9310514) 
10:00 a.m.
Medians vs Centroids.
Peter J. Slater*, University of Alabama in Huntsville
(93105337) 
10:30 a.m.
On $k$Orderable Graphs.
Jill R. Faudree, Emory University
Ralph J. Faudree, University of Memphis
Ronald J. Gould*, Emory University
Michael S. Jacobson, University of Louisville
Linda Lesniak, Drew University
(93105110)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Fractal Geometry and Related Topics, III
Room 160, Burhans Hall
Organizers:
KaSing Lau, University of Pittsburgh lauks+@pitt.edu
Weibin Zeng, University of Louisville wbzeng01@ulkyvx.louisville.edu

8:00 a.m.
Dynamical systems on tiling spaces and selfsimilar processes with zer o entropy.
Teturo Kamae*, Osaka City University
(93160231) 
8:30 a.m.
A practical algorithm for computing the Hausdorff dimension of boundaries of selfsimilar tiles in $R^d$.
James E. Keesling*, University of Florida
Andrew Vince, University of Florida
Paul F. Duvall, Jr., University of North Carolina at Greensboro
(93128242) 
9:00 a.m.
Multifractal Formalism for Sofic Measures and Dimension Spectra of SelfAffine Sets.
Satoshi Takahashi*, Department of Mathematics, Osaka University
(93128255) 
9:30 a.m.
Extension of Hawkes' Theorem on the Hausdorff dimension of a GaltonWatson tree.
Steven P. Lalley*, University of Chicago
(93160275) 
10:00 a.m.
On the Disintegration with Respect to Dimension of Measures generated by Exchangeable Cascades.
Stanley C Williams*, Utah State University
(93160310) 
10:30 a.m.
Multifractal Processes and Long Range Dependence.
Rudolf H Riedi*, Rice University
(93128283)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Semigroups, Algorithms, and Universal Algebra, III
Room 158, Burhans Hall
Organizers:
Ralph N. McKenzie, Vanderbilt University mckenzie@math.vanderbilt.edu
Steven Seif, University of Louisville swseif01@ulkyvx.louisville.edu

8:00 a.m.
Calculating conjugates in finite transformation semigroups.
Robert B. McFadden*, University of Louisville
(93120304) 
9:00 a.m.
Variations on the theme of semidirect products of regular semigroups.
Peter R Jones*, Marquette University
(93120298) 
9:30 a.m.
The restricted Quackenbush conjecture.
R. Willard*, University of Waterloo
Keith Kearnes, University of Louisville
(93108225) 
10:00 a.m.
Circuits over algebras and complexity classes of parallel computations .
Joel VanderWerf*, Neologic Systems
(93108324) 
10:30 a.m.
Finite bases for graph Malgebras.
Dejan Deli\'{c}*, Department of Pure Mathematics
(93108227)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:30 a.m.
Special Session on The Use of the History of Mathematics and Science in the University and School Classroom, III
Room 15, Founder's Union Building
Organizers:
Richard M. Davitt, University of Louisville rmdavi01@ulkyvm.louisville.edu

8:00 a.m.
Change, Probability, and Numbers: a course for nonmajors on Eighteenthcentury Mathematics.
Fernando Q Gouvea*, Colby College
(9310160) 
8:40 a.m.
On the Uses of Pythagoras: Whig History and Mathematical Initiation in the capstone history of mathematics course.
James A. Murdock*, Iowa State University
(93101118) 
9:20 a.m.
Using Informal Resources to Enrich a Mathematics Course for Elementary and Early Childhood Educators.
Nkechi M Agwu*, Borough of Manhattan Community College, City University of New York
(93101278) 
10:00 a.m.
Introducing the History of Math to PreService Teachers.
Diane E. Mason*, Indian Hills Community College
(9319644)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Spectral Theory, Mathematical Physics, and Disordered Media, III
Room 1, Burhans Hall
Organizers:
Peter David Hislop, University of Kentucky hislop@ms.uky.edu
Gunter H. Stolz, University of Alabama at Birmingham stolz@vorteb.math.uab.edu

8:00 a.m.
Recovering Asymptotics of Metrics From Fixed Energy Scattering Data.
Antonio Sa Barreto*, Purdue University
(93135288) 
8:30 a.m.
Asymptotics of Forced Elastic Waves.
Gis\`ele Ruiz Goldstein*, University of Memphis
Jerome A. Goldstein, University of Memphis
Enrico Obrecht, Universit\`a di Bologna
(93135325) 
9:00 a.m.
Bilinear optimal control of a Kirchhoff plate by means of a velocity controller.
Mary E Bradley*, University of Louisville
Suzanne M Lenhart, Universtiy of Tennessee
Jiongmin Yong, Fudan University
(93135166) 
9:30 a.m.
Rate of relaxation to fronts for the LebowitzOrlandiPresutti equation.
Eric A Carlen*, Georgia Tech
(93182318) 
10:00 a.m.
LongTime Behavior of Scalar Viscous Shock Fronts in Two Dimensions .
Jonathan Goodman, Courant Institute/NYU
Judith R. Miller*, Georgetown University
(93135273) 
10:30 a.m.
Onedimensional nonlinear diatomic particle chains.
Anna Vladimirova Georgieva*, Duke University
(93182172)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.11:00 a.m.
Special Session on Geometry of Affine Space, III
Room 162, Burhans Hall
Organizers:
Gene Freudenburg, University of Southern Indiana freudenb.ucs@smtp.usi.edu
David Wright, Washington University wright@einstein.wustl.edu

8:00 a.m.
Discussion 
8:30 a.m.
Invariants for Additive Group Actions.
James K Deveney*, Virginia Commonwealth Univ.
David R Finston, New Mexico State Univ
(93113139) 
9:10 a.m.
Local Triviality of Proper Actions of the Additive Group.
David R. Finston*, New Mexico State University
James K. Deveney, Virginia Commonwealth University
(93114137) 
9:50 a.m.
Hypersurfaces invariant under a $C^*$ action.
Ted E Petrie*, Rutgers University
(93114171) 
10:30 a.m.
Affine modifications and affine hypersurfaces with a very transitive automorphism group.
Shulim Kaliman*, University of Miami
Mikhail Zaidenberg, University of Grenoble
(93114303)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Algebraic Combinatorics, III
Room 255, Burhans Hall
Organizers:
Anders Bjorner, Royal Institute of Technology bjorner@math.kth.se
Michelle L. Wachs, University of Miami wachs@math.miami.edu

8:00 a.m.
Partitions with block size bounded above, and partitions with one forbidden block size: Homotopy and Homology.
Sheila Sundaram*, Wesleyan University
(93105321) 
8:30 a.m.
On the Smith Normal Form of the Varchenko matrices.
Phil Hanlon*, Univ. of Michigan
Graham Denham, Univ. of Michigan
(93105100) 
9:00 a.m.
Combinatorics of the cyclic Lie character.
H\'el\`ene Barcelo*, ASU
Volkmar Welker, Universit\"at GHEssen
(93105332) 
9:30 a.m.
Discrete Morse Theory for Graph Complexes.
John Shareshian*, California Institute of Technology
(93105185) 
10:00 a.m.
Cohomology of Dowling Lattices and Lie Superalgebras.
Eric Gottlieb*, University of Miami
Michelle L Wachs, University of Miami
(93105282) 
10:30 a.m.
Polynomial time algorithms to approximate permanents of nonnegative matrices .
Alexander Barvinok*, University of Michigan
(93105244)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.10:50 a.m.
Special Session on Modern Function Theory, III
Room 164, Burhans Hall
Organizers:
David Minda, University of Cincinnati david.minda@math.uc.edu
David A. Herron, University of Cincinnati david.herron@math.uc.edu

8:00 a.m.
Uniform norms of products of polynomials over compact sets in the complex plane.
Igor E. Pritsker*, Case Western Reserve University
(9313035) 
8:30 a.m.
On hyperbolically convex functions.
Diego Mejia*, Universidad Nacional de Colombia
Christian Pommerenke, Technische Universitat, Berlin
(93130308) 
9:00 a.m.
Complex linear combination of extremal slit mappings.
Masakazu Shiba*, Dept. Applied Math., Hiroshima Univ., Japan
(93130211) 
9:30 a.m.
On Generalizations of Approximations to the Arc Length of an Ellipse.
Roger W Barnard*, Texas Tech University
Kent Pearce, Texas Tech University
Lawrence Schovanec, Texas Tech University
Kendall C Richards, Southwestern University
(93133314) 
10:00 a.m.
Analytic Continuation of Dirichlet Series.
James Milne Anderson, University College London
Dmitry Khavinson*, University of Arkansas
Harold S. Shapiro, Royal Institute of Technology
(9313085) 
10:30 a.m.
Conformal Structures of Riemann Surfaces {\sl via} Circle Packing.
Philip L. Bowers, Florida State University
Kenneth Stephenson*, University of Tennessee
(93130133)

8:00 a.m.

Saturday March 21, 1998, 8:00 a.m.12:00 p.m.
Book Exhibit and Electronic Products Display
Lobby, Founder's Union Building 
Saturday March 21, 1998, 8:30 a.m.10:50 a.m.
Special Session on Functional Equations and Inequalities, III
Room 156, Burhans Hall
Organizers:
Thomas Riedel, University of Louisville t0ried01@homer.louisville.edu
Prasanna Sahoo, University of Louisville pksaho01@homer.louisville.edu

8:30 a.m.
The Dilation Equation and Iterated Function System.
KaSing Lau*, Univ. of Pittburgh, Pittsburgh, Pa. 15260/ The Chinese University of Hong Kong, H.K.
SzeMan Ngai, Dept. Math. Cornell University, Ithaca N.Y. 14853
(93126178) 
9:00 a.m.
Inequalities for Maximum Modulus of Rational Functions with Prescribed Poles.
Narendra K Govil*, Auburn University, Al 36848
Ram N Mohapatra, University of Central Florida
(9313024) 
9:30 a.m.
Fixed point theorems and applications.
Sankatha Singh*, Memorial University
(93147200) 
10:00 a.m.
Uncertainty due to imprecise measurements and the Cauchy functional equations.
Elias Y. Deeba*, University of HoustonDowntown
Andre De Korvin, University of HoustonDowntown
Shishen S. Xie, University of HoustonDowntown
(9313907) 
10:30 a.m.
On A Class of Functional Equations in Distribution.
Elias Y. Deeba, University of HoustonDowntown
Prasanna K. Sahoo, University of Louisville
Shishen S. Xie*, University of HoustonDowntown
(9313908)

8:30 a.m.

Saturday March 21, 1998, 8:30 a.m.10:50 a.m.
Special Session on Banach Space Theory, III
Room 8, Burhans Hall
Organizers:
Patrick N. Dowling, Miami University, Ohio pndowling@miavx1.acs.muohio.edu
Beata Randrianantoanina, Miami University, Ohio randrib@muohio.edu

8:30 a.m.
Sobolev inequalities of exponential type.
David E Edmunds, University of Sussex, U.K.
Ritva M HurriSyrjanen*, University of Helsinki, Finland
(93146256) 
9:00 a.m.
On nonsurjective approximate isometries.
Stephen J Dilworth*, University of South Carolina
(93146235) 
9:30 a.m.
Representing $\ell_p$ in quotients of Banach spaces.
Petr Habala*, University of Texas at Austin
Nicole TomczakJaegermann, FRSC, University of Alberta, Edmonton, Canada
(93146267) 
10:00 a.m.
Remarks on Legendre polynomials .
Nigel J Kalton*, University of Missouri
(93146182) 
10:30 a.m.
Quasilinear maps between Orlicz spaces.
Costantin Dan Cazacu*, University of Missouri, Columbia
Nigel J. Kalton, University of Missouri, Columbia
(9314666)

8:30 a.m.

Saturday March 21, 1998, 8:30 a.m.10:50 a.m.
Special Session on Boundary Value Problems for Differential Equations, III
Room 159, Burhans Hall
Organizers:
Paul W. Eloe, University of Dayton eloe@saber.udayton.edu

8:00 a.m.
Slow Passage Through Bifurcation in Hamiltonian Systems.
Norman R. Lebovitz, University of Chicago
Todd R. Young*, Ohio University
(93134353) 
8:30 a.m.
Periodic Solutions for Nonlinear Volterra Difference Equations With Infinite Delay.
Youssef Raffoul*, Tougaloo College
(93139151) 
9:00 a.m.
Groebner Bases for Discrete Isoperimetric Problems.
Betty Jean Harmsen*, Omaha, NE
(93139146) 
9:30 a.m.
Direct and Inverse Scattering in a Layered or Anisotropic Medium.
Joseph F Coyle*, University of Delaware
(93165238) 
10:00 a.m.
Existence, Uniqueness, and Properties of Azimuthal Shear Solutions in Compressible Nonlinear Elasticity.
Joseph E. Paullet*, Penn State Erie
Debra A. Polignone, University of Tennessee
Paul G. Warne, Maryville College
(9313455) 
10:30 a.m.
Wellposedness, regularity, and stabilization of shells.
Christine A McMillan*, Virginia Tech
(93149349)

8:00 a.m.

Saturday March 21, 1998, 8:30 a.m.10:50 a.m.
Special Session on Spectral Geometry, III
Room 3, Burhans Hall
Organizers:
Ruth Gornet, Texas Tech University gornet@math.ttu.edu
Peter Anton Perry, University of Kentucky perry@ms.uky.edu

8:30 a.m.
Spectral asymptotics for compactly supported perturbations of the Laplacian on Euclidian space.
Tanya J. Christiansen*, University of Missouri
(93135142) 
9:00 a.m.
Spectral Clustering of the Dirac Operator on Spheres.
Mary R Sandoval*, Purdue University
(93158162) 
9:30 a.m.
Spectral geometry of Gmanifolds and foliations.
Ken Richardson*, Texas Christian University
(93158154) 
10:00 a.m.
Asymptotic estimates of Husimi distributions centered near critical points.
Mariah Birgen*, Wartburg College
(93158312) 
10:30 a.m.
Asymptotics of powers of positive line bundles over Kahler manifolds.
Steve Zelditch, IV*, Johns Hopkins University
(93132164)

8:30 a.m.

Saturday March 21, 1998, 8:30 a.m.11:00 a.m.
Special Session on Applied Probability and Actuarial Science, III
Room 14, Founder's Union Building
Organizers:
Grzegorz Rempala, University of Louisville garemp01@homer.louisville.edu
Krzysztof Ostraszewski, University of Louisville kmosta01@homer.louisville.edu
Ewa M. Kubicka, University of Louisville
Bogdan Gapinski, University of Louisville

8:30 a.m.
Nonparametric test of assets performances .
Grzegorz A Rempala*, University of Louisville
Krzysztof M Ostaszewski, University of Louisville
(93162289) 
9:10 a.m.
A Statistical Analysis of Tidal Data.
Michael Sherman*, Texas A&M University
(93160155) 
9:50 a.m.
Estimation under asymmetric loss functions.
Michael I Baron*, Math Dept, University of Texas at Dallas
(9316080) 
10:30 a.m.
Matrix means and permanents.
Gabor Szekely*, Eotvos L. University, Budapest, and Bowling Green State University
(9316075)

8:30 a.m.

Saturday March 21, 1998, 9:00 a.m.10:50 a.m.
Special Session on Real Analysis, III
Room 163, Burhans Hall
Organizers:
Udayan B. Darji, University of Louisville ubdarj01@homer.louisville.edu
Lee Larson, University of Louisville lmlars01@homer.louisville.edu

9:00 a.m.
Chebyshev Foam.
Gordon G. Johnson*, University of Houston
(93126263) 
9:30 a.m.
Further Properties of an Extremal Set of Uniqueness.
Matt Insall, University of Missouri  Rolla
David E. Grow*, University of Missouri  Rolla
(93143165) 
10:00 a.m.
Green's Theorem with NO Differentiability.
Isidore Fleischer*, Centre de recherches math\'ematiques
(9312656) 
10:30 a.m.
On supmeasurable functions problem.
Krzysztof Ciesielski*, West Virginia University
(9312638)

9:00 a.m.

Saturday March 21, 1998, 9:00 a.m.10:50 a.m.
Special Session on LowDimensional Topology, III
Room 161, Burhans Hall
Organizers:
Abigail A. Thompson, University of California, Davis thompson@math.ucdavis.edu
Martin Scharlemann, University of Califronia, Santa Barbara mgscharl@math.ucsb.edu

9:00 a.m.
Torsion in the Kauffman bracket skein module of a 3manifold and use of a homology group and hyperbolic structure in torsion detection.
J\'ozef H Przytycki*, George Washington University
(9315764) 
9:30 a.m.
Examples of foliation cones.
John Cantwell*, Saint Louis University
Lawrence Conlon, Washington University
(9315721) 
10:00 a.m.
Genuine laminations and group negative curvature.
William H. Kazez*, University of Georgia
David Gabai, California Insitute of Technology
(9315710) 
10:30 a.m.
Small Seifert group actions on R .
Rachel Roberts*, Washington University
Melanie Stein, Trinity College
(9315745)

9:00 a.m.

Saturday March 21, 1998, 11:10 a.m.12:00 p.m.
Invited Address
Recognizing the 3sphere.
Room 218, Founder's Union Building
Abigail Thompson*, University of California at Davis 
Saturday March 21, 1998, 1:40 p.m.2:30 p.m.
Invited Address
Folding and coloring problems in mathematics and physics.
Room 218, Founder's Union Building
Philippe DiFrancesco*, University of North Carolina at Chapel Hill 
Saturday March 21, 1998, 2:45 p.m.5:35 p.m.
Special Session on Combinatorics and Enumerative Geometry, II
Room 2, Burhans Hall
Organizers:
Kequan Ding, University of Illinois, UrbanaChampaign kding@math.uiuc.edu
Chi Wang, University of Louisville c0wang01@ulkyvx.louisville.edu

2:45 p.m.
$q$Rook polynomials and matrices over finite fields.
James B Haglund*, M.I.T.
(93105234) 
3:15 p.m.
Toughness, trees and walks.
Mark Ellingham, Vanderbilt University
Xiaoya Zha*, Middle Tennessee State University
(93105305) 
3:45 p.m.
On the number of rational points over finite field of the unipotent partial flag variety.
Anatol N. Kirillov*, Professor
(93105319) 
4:15 p.m.
Quadratic algebras in Schubert calculus.
Sergey Fomin*, M.I.T.
Anatol N Kirillov, CRM, U. de Montreal
(93105328) 
4:45 p.m.
A Pieritype formula for the symplectic flag manifold .
Nantel Bergeron, York University
Frank Sottile*, University of Toronto
(93114299) 
5:15 p.m.
The Terwilliger Algebras of Bipartite P and Qpolynomial Association Schemes.
John S Caughman, IV*, University of Wisconsin
(93105351)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.6:05 p.m.
Special Session on Combinatorics and Graph Theory, IV
Room 157, Burhans Hall
Organizers:
Andre E. Kezdy, University of Louisville aekezd01@homer.louisville.edu
Grzegorz Kubicki, University of Louisville gmkubi01@homer.louisville.edu
Jenoe Lehel, University of Louisville j0lehe01@homer.louisville.edu

2:45 p.m.
Essentially Finite Colorings.
Bela Bollob\'{a}s, University of Memphis
Richard H. Schelp*, University of Memphis
Yoshi Kohayakawa, Universidade de S\~{a}o Paulo
(9310594) 
3:15 p.m.
Colorings of Complete Graphs and Rainbow Subgraphs.
Ralph J Faudree*, University of Memphis
(93105180) 
3:45 p.m.
Forcing concepts in graph theory.
Frank Harary*, New Mexico State University
(9310589) 
4:15 p.m.
Cographs as intersection graphs and intersections of graphs.
Terry A. McKee*, Wright State University
(9310583) 
4:45 p.m.
Partitioning Vertices of a Tournament into Independent Cycles.
Guantao Chen*, Georgia State University
(93105294) 
5:15 p.m.
Domination in Oriented Graphs.
Bela Bollobas, The University of Memphis
Tamas Szabo*, The University of Memphis
(93105276) 
5:45 p.m.
The Ramsey numbers $r(C_4,G)$ and $r(C_5,G)$ for all graphs $G$ of order six.
Chula J Jayawardene*, The University of memphis
Cecil C. Rousseau, The University of Memphis
(93105342)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:35 p.m.
Special Session on Discrete Mathematics, Classification Theory and Consensus
Room 156, Burhans Hall
Organizers:
Robert C. Powers, University of Louisville rcpowe01@homer.louisville.edu

2:45 p.m.
Resolving Arrow's Theorem and Voting Paradoxes.
Donald G. Saari*, Northwestern University
(9319047) 
3:15 p.m.
Arrowlike Theorems for Closed Systems of Sets.
Gary D. Crown, Wichita State University
Melvin F. Janowitz*, University of Massachusetts
(93105112) 
3:45 p.m.
A Unifying approach to Arrow's Theorem.
Richard A. CramerBenjamin*, University of Massachusetts
(9310688) 
4:15 p.m.
An axiomatic approach to centrality functions on graphs.
Fred R. McMorris*, University of Louisville
(93105117) 
4:45 p.m.
Median with Respect to the MinimumElementMoves Metric.
Kaddour Boukaabar*, California University of Pennsylvania
(9310690) 
5:15 p.m.
Clique Consensus Methods with Polynomial Time Algorithms.
David J. Bryant*, Centre de Recherches Mathematiques
(93105140)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:35 p.m.
Special Session on Fractal Geometry and Related Topics, IV
Room 160, Burhans Hall
Organizers:
KaSing Lau, University of Pittsburgh lauks+@pitt.edu
Weibin Zeng, University of Louisville wbzeng01@ulkyvx.louisville.edu

2:45 p.m.
On packing measure and packing dimension.
Gerald A Edgar*, The Ohio State University
(9312820) 
3:15 p.m.
Koebe Type Distortion Theorem for Nonconformal Semigroups .
Yunping Jiang*, Queens College of CUNY
(93132212) 
3:45 p.m.
Parabolic iterated function systems.
R. Daniel Mauldin*, University of North Texas
Mariusz Urbanski, University of North Texas
(93158144) 
4:15 p.m.
Dimensions and measures for a curvilinear Sierpinski gasket or Apollonian Packings.
Mariusz Urbanski*, University of North Texas
Daniel Mauldin, University of North Texas
(93128156) 
4:45 p.m.
Invariant measures on Julia sets via iterated function systems.
Russell K. Jackson, Brown Ubiversity
Karl E. Petersen*, University of North Carolina
(9313097) 
5:15 p.m.
Approximation of invariant measures for iterated function systems.
Anders Oberg*, Umeå University and Uppsala University
(93128233)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.6:05 p.m.
Special Session on Banach Space Theory, IV
Room 8, Burhans Hall
Organizers:
Patrick N. Dowling, Miami University, Ohio pndowling@miavx1.acs.muohio.edu
Beata Randrianantoanina, Miami University, Ohio randrib@muohio.edu

2:45 p.m.
Some fixed point results in $\ell^1$ and $c_0$.
Patrick N Dowling, Miami University
Christopher J Lennard, Univ. of Pittsburgh
Barry Turett*, Oakland University
(93146306) 
3:15 p.m.
On Asymptotic $\ell_1$ Banach spaces.
George Androulakis*, University of MissouriColumbia
(93146260) 
3:45 p.m.
Relative Complementation Property.
William B. Johnson, Texas A\&M University
Timur Oikhberg*, Texas A\&M University
(93146246) 
4:15 p.m.
Every frame is a sum of three (but not two) orthonormal bases  and other frame representations.
Peter G Casazza*, U. of Missouri
(9314672) 
4:45 p.m.
Genus N Banach Spaces.
Peter G. Casazza, University of Missouri
Mark C. Lammers*, University of North CarolinaWilmington
(93146187) 
5:15 p.m.
Remarks about Schlumprecht space.
Denka Kutzarova*, Bulgarian Academy of Sciences
(93146150) 
5:45 p.m.
Operators on spaces of analytic functions in the Dixmier class.
Mark C Ho*, National Sun YatSen University
(9314715)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.4:05 p.m.
Special Session on Real Analysis, IV
Room 163, Burhans Hall
Organizers:
Udayan B. Darji, University of Louisville ubdarj01@homer.louisville.edu
Lee Larson, University of Louisville lmlars01@homer.louisville.edu

2:45 p.m.
Shades of the Cauchy functional equation.
Rick Mabry*, Louisiana State University in Shreveport
(9312632) 
3:15 p.m.
Continuity of symmetrically continuous functions.
Marcin Szyszkowski*, West Virginia University
(93126296) 
3:45 p.m.
Absolute Summability Factors of Infinite Series.
Syed M. Mazhar*, Kuwait University
(9314039)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.6:35 p.m.
Special Session on Semigroups, Algorithms, and Universal Algebra, IV
Room 158, Burhans Hall
Organizers:
Ralph N. McKenzie, Vanderbilt University mckenzie@math.vanderbilt.edu
Steven Seif, University of Louisville swseif01@ulkyvx.louisville.edu

2:45 p.m.
Homotopy and semisymmetry.
Jonathan D. H. Smith*, Iowa State University
(93120229) 
3:15 p.m.
Posets whose monoids of orderpreserving maps are abundant.
M. E. Adams*, State University of New York at New Paltz
Matthew Gould, Vanderbilt University
(93106245) 
3:45 p.m.
Categorical Equivalence of Modes.
Clifford H Bergman*, Iowa State University
Joel Berman, University of Illinois at Chicago
(93118138) 
4:15 p.m.
Priestley Duality for Distributive and Brouwerian Semilattices.
Jonathan D Farley*, Vanderbilt University
(93108329) 
4:45 p.m.
Transformation semigroups and associated permutation groups.
Inessa Levi*, University of Louisville
(93120249) 
5:15 p.m.
Discussion 
5:45 p.m.
Lattices with large minimal extensions.
Ralph Freese, University of Hawaii
Jaroslav Jezek, Charles University (Prague)
J. B. Nation*, University of Hawaii
(93106341) 
6:15 p.m.
Unsolved and unsolvable problems in finite algebras and semigroups.
Ralph McKenzie*, Vanderbilt University
(93108302)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:05 p.m.
Special Session on Boundary Value Problems for Differential Equations, IV
Room 159, Burhans Hall
Organizers:
Paul W. Eloe, University of Dayton eloe@saber.udayton.edu

3:15 p.m.
Spatial analyticity for the nonlinear heat equation in a bounded domain.
Zoran Grujic*, Indiana University
Igor Kukavica, Univ. of Southern Cal.
(93135101) 
3:45 p.m.
Multiple Positive Solutions for a ThreePoint Boundary Value Problem.
Douglas Anderson*, Concordia College
(93134135) 
4:15 p.m.
Control and stabilization of elastic systems.
Mary Ann Horn*, Vanderbilt University
(93135352)

3:15 p.m.

Saturday March 21, 1998, 2:45 p.m.5:05 p.m.
Special Session on Spectral Geometry, IV
Room 3, Burhans Hall
Organizers:
Ruth Gornet, Texas Tech University gornet@math.ttu.edu
Peter Anton Perry, University of Kentucky perry@ms.uky.edu

2:45 p.m.
Sharp constant in the TrudingerMoser Adam inequality .
SunYung A. Chang*, UCLA
(93153240) 
3:15 p.m.
Hausdorff dimension and limits of Kleinian groups.
Richard D. Canary, University of Michigan
Edward C. Taylor*, University of Kentucky
(9315827) 
3:45 p.m.
Length spectra of graphs.
Gregory T Quenell*, Oberlin College
(93105173) 
4:15 p.m.
Hill's Equation for a Regular Graph.
Robert C. Carlson*, University of Colorado at Colorado Springs
(9313463) 
4:45 p.m.
Spectral Theory of Toeplitz Operators on Manifolds.
Victor W. Guillemin, Massachusetts Institute of Technology
Kate Okikiolu*, University of California, San Diego
(93147345)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:35 p.m.
Special Session on Spectral Theory, Mathematical Physics, and Disordered Media, IV
Room 1, Burhans Hall
Organizers:
Peter David Hislop, University of Kentucky hislop@ms.uky.edu
Gunter H. Stolz, University of Alabama at Birmingham stolz@vorteb.math.uab.edu

2:45 p.m.
Eigenvalue Estimates in the SemiClassical Limit for Pauli and Dirac Operators with a Magnetic Field.
W. D. Evans, University of Wales, Cardiff
Roger T. Lewis*, University of Alabama at Birmingham
(93181218) 
3:15 p.m.
An improved FeynmanKacIt\^{o} formula.
Dirk Hundertmark*, Princeton university
(93160279) 
3:45 p.m.
BohrSommerfeld Quantization Rules and Rydberg States of Hydrogen.
George A. Hagedorn*, Virginia Polytechnic Institute and State University
Sam L. Robinson, William Paterson University of New Jersey
(93181176) 
4:15 p.m.
On Moments of Negative Eigenvalues for the Pauli Operator.
Zhongwei Shen*, University of Kentucky
(93135286) 
4:45 p.m.
Eigenvalues of Schr\"odinger operators with potentials depending on curvature.
Evans M. Harrell, II*, Georgia Institute of Technology
Michael Loss, Georgia Institute of Technology
(93181167) 
5:15 p.m.
Spectral and Scattering Theory for Kleinian Groups.
Peter A Perry*, University of Kentucky
(93135228)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:55 p.m.
Special Session on Geometry of Affine Space, IV
Room 162, Burhans Hall
Organizers:
Gene Freudenburg, University of Southern Indiana freudenb.ucs@smtp.usi.edu
David Wright, Washington University wright@einstein.wustl.edu

2:45 p.m.
Analytic Desingularization In Characteristic Zero.
Shreeram S. Abhyankar*, Purdue University
(9311492) 
3:25 p.m.
Local Factorization of Birational Morphisms.
Steven Dale Cutkosky*, Univ. Missouri
(93114186) 
4:45 p.m.
From indaffine varieties to the Jacobian Problem.
Tac Kambayashi*, Tokyo Denki University
(93114134) 
5:25 p.m.
Stably tameness of a new class of automorphisms.
David L Wright*, Washington University
Engelbert Hubbers, University of Nijmegen
(93113326)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.6:05 p.m.
Special Session on Algebraic Combinatorics, IV
Room 255, Burhans Hall
Organizers:
Anders Bjorner, Royal Institute of Technology bjorner@math.kth.se
Michelle L. Wachs, University of Miami wachs@math.miami.edu

2:45 p.m.
Mixed Bruhat operators.
Sergey Fomin*, M.I.T.
Francesco Brenti, University of Rome
(93105330) 
3:15 p.m.
The partial order of dominant weights.
John R Stembridge*, University of Michigan, Ann Arbor, MI
(9310571) 
3:45 p.m.
Pattern Avoidance and Rational Smoothness of Schubert Varieties.
Sara C. Billey*, MIT
(93105127) 
4:15 p.m.
What does skewsymmetric functions, $F_w$ Stanley symmetric functions, skewSchubert functions all have in common?
Nantel Bergeron*, York University
Frank Sottile, University of Toronto
(93105116) 
4:45 p.m.
A Recursion for Charge on Words.
Kendra Killpatrick, University of Minnesota
Dennis E White*, University of Minnesota
(9310551) 
5:15 p.m.
Antiautomorphisms of subgroup lattices and involutions on tabloids.
Noel Watson, The Wharton School of the University of Pennsylvania
Lynne Butler*, Haverford College
Curtis Greene, Haverford College
(93105339) 
5:45 p.m.
Some remarkable families of multiple regular representations of $S_n$ .
Francois Bergeron, L'Universit\'e du Qu\'ebec \`a Montr\'eal
Adriano M Garsia*, University of California, San Diego
Glenn P Tesler, University of California, San Diego
(93105253)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:35 p.m.
Special Session on Modern Function Theory, IV
Room 164, Burhans Hall
Organizers:
David Minda, University of Cincinnati david.minda@math.uc.edu
David A. Herron, University of Cincinnati david.herron@math.uc.edu

2:45 p.m.
Uniform densities of regular sequences in the unit disk.
Peter Duren*, University of Michigan
Alexander P. Schuster, Washington University
Kristian Seip, Norwegian University of Science and Technology
(93130272) 
3:15 p.m.
Doubling Measures with Different Bases.
JangMei Wu*, University of Illinois, Department of Mathematics
(93128204) 
3:45 p.m.
Extremal lengths of homology classes on Riemann surfaces.
Makoto Masumoto*, Department of Mathematics, Yamaguchi University, Japan
(93130147) 
4:15 p.m.
On the zeros of entire functions of small positive order and their derivatives.
Joseph Miles, University of Illinois
John F Rossi*, Virginia Tech
(93130113) 
4:45 p.m.
J{\o}rgensen's inequality for discrete convergence groups.
Petra BonfertTaylor*, Assistant Professor
(93108189) 
5:15 p.m.
Interpolation by Bloch functions.
Alexander P Schuster*, Washington University in St. Louis
(93130195)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.5:05 p.m.
Special Session on LowDimensional Topology, IV
Room 161, Burhans Hall
Organizers:
Abigail A. Thompson, University of California, Davis thompson@math.ucdavis.edu
Martin Scharlemann, University of Califronia, Santa Barbara mgscharl@math.ucsb.edu

2:45 p.m.
Counting annuli and tori.
Martin G Scharlemann, UCSB
Jennifer C Schultens*, Emory University
(9315716) 
3:15 p.m.
Annular and boundary reducing Dehn fillings.
Cameron McA. Gordon*, The University of Texas at Austin
YingQing Wu, University of Iowa
(9315782) 
3:45 p.m.
Extension of incompressible surfaces on the boundary of 3manifolds.
Michael Freedman, UCSD
Hugh Howards, UCSD
YingQing Wu*, University of Iowa
(9315781) 
4:15 p.m.
Heegaard diagrams and handlebody groups.
Feng Luo*, Dept. of Math., Rutgers Univ.
(9315773) 
4:45 p.m.
Proof of Arnold's Conjectures About Plane Curves With Double Points.
Chenghui Luo*, Fraunhofer CRCG, Inc.
(9315511)

2:45 p.m.

Saturday March 21, 1998, 2:45 p.m.4:25 p.m.
Session for Contributed Papers
Room 9, Burhans Hall

2:45 p.m.
Der bunte Hahn.
Klaus Leeb*, Universitaet Erlangen
(9310609) 
3:00 p.m.
The Shells of Vaggione: Some Comments and Questions.
Arthur Knoebel*, Vanderbilt University
(93108338) 
3:15 p.m.
Cancellation and Embedding Theorems for Compact Uniquely Divisible Semigroups.
Kirk Benningfield*, McNeese State University
(9312228) 
3:30 p.m.
A Characterization of Compact Regular Semigroups with the Ideal Extension Property.
Karen Dommert Aucoin*, McNeese State University
Kirk Benningfield, McNeese State University
(9312229) 
3:45 p.m.
Hilbert's Space Filling Curve and Hausdorff Dimension.
Mark C McClure*, UNC  Asheville
(9312654) 
4:00 p.m.
Subdivisions of twodimensional point sets with few interior points.
Wendy A. Weber*, University of Kentucky
(93152262) 
4:15 p.m.
Recursive C++ Algorithm for Multiple Integrals.
Clinton P. Fuelling*, Ball State University
(9316536)

2:45 p.m.