AMS Sectional Meeting Full Program
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2001 Spring Southeastern Section Meeting
Columbia, SC, March 1618, 2001
Meeting #963
Associate secretaries:
John L Bryant, AMS
bryant@math.fsu.edu
Friday March 16, 2001

Friday March 16, 2001, 8:00 a.m.4:30 p.m.
Meeting Registration
Lobby, Gambrell Hall

Friday March 16, 2001, 8:00 a.m.11:50 a.m.
Special Session on Banach Spaces, I
Room 005, Gambrell Hall
Organizers:
George Androulakis, University of South Carolina, Columbia giorgis@math.sc.edu
Stephen Dilworth, University of South Carolina, Columbia dilworth@math.sc.edu
Maria K. Girardi, University of South Carolina, Columbia girardi@math.sc.edu

8:00 a.m.
Notes on Subspaces of Certain Rearrangement Invariant Spaces.
Andrew B Perry*, Springfield College
(96346188)

8:30 a.m.
On Lorentz spaces $\Gamma_{p,w}$.
Anna H Kami\'nska*, The University of Memphis, Memphis, TN
Lech Maligranda, Lulea University of Technology, Lulea, Sweden
(96346186)

9:00 a.m.
A disjointess type property of averaging operators.
Beata Randrianantoanina*, Miami University, Ohio
(96346197)

9:30 a.m.
Noncommutative subsequence principles.
Narcisse Randrianantoanina*, Miami University
(9634699)

10:00 a.m.
Representation spaces for the essential spectra of positive operators.
Vladimir G Troitsky*, University of Texas, Austin.
(96346225)

10:30 a.m.
The pseudoDaugavet property of Banach spaces.
Timur Oikhberg*, The University of Texas at Austin
(96346202)

11:00 a.m.
An Operator Hilbert space without the operator approximation property.
Alvaro Arias*, University of Texas at San Antonio
(96346105)

11:30 a.m.
Convex combinations of extreme points in operator algebras.
Elias Katsoulis*, East Carolina University
(9634754)

Friday March 16, 2001, 8:30 a.m.11:20 a.m.
Special Session on Discrete and Computational Geometry and Graph Drawing, I
Room 431, Gambrell Hall
Organizers:
Farhad Shahrokhi, University of North Texas
Laszlo A. Szekely, University of South Carolina, Columbia laszlo@math.sc.edu

8:30 a.m.
Geometric Inclusion Orders.
William T. Trotter*, Arizona State University
(9630672)

9:30 a.m.
Point Pattern Matching and Almost Congruent Subsets.
Peter Brass*, Free University, Berlin
(9635256)

10:00 a.m.
The number of directions determined by points in the threedimensional Euclidean space.
Aart Blokhuis, Technical University of Technology
\'Akos Seress*, The Ohio State University, Columbus, Ohio
(9635270)

10:30 a.m.
Crossings in geometric complete graphs.
Heiko Harborth*, Techn. Univ. Braunschweig, Germany
(9630519)

11:00 a.m.
Unit chords of a convex domain.
Bernardo M. \'Abrego, Rutgers University
Silvia Fern\'andez*, Rutgers University
(9635276)

Friday March 16, 2001, 8:30 a.m.11:45 a.m.
Special Session on Algebras, Lattices, Varieties, I
Room 247, Gambrell Hall
Organizers:
George F. McNulty, University of South Carolina mcnulty@math.sc.edu
Ralph S. Freese, University of Hawaii ralph@math.hawaii.edu
James B. Nation, University of Hawaii jb@math.hawaii.edu

8:30 a.m.
Submonoids of the Additive Monoid of Natural Numbers.
Leslie Cohn*, The Citadel
(96306148)

9:00 a.m.
Semidistributive inverse semigroups.
Katherine G JohnstonThom*, University of Charleston, SC
Peter R Jones, Marquette University
(9630863)

9:30 a.m.
Sheaf Representations Revisited.
Stephen D Comer*, The Citadel
(9630867)

10:00 a.m.
The Controversy About Continuous Clustering.
Melvin F Janowitz*, DimacsRutgers University
(9636245)

10:30 a.m.
Posets That Locally Resemble Distributive Lattices: An Extension of Stanley's Theorem (with Connections to Buildings and Diagram Geometries).
Jonathan D Farley*, Vanderbilt University
Stefan E Schmidt, University of Mainz
(96306235)

11:00 a.m.
Canonical extensions of bounded distributive lattice expansions.
Mai Gehrke, New Mexico State University
Bjarni J\'onsson*, Vanderbilt University
(96306112)

Friday March 16, 2001, 9:15 a.m.11:25 a.m.
Special Session on Mathematical Biology, I
Room 321, Gambrell Hall
Organizers:
Douglas B. Meade, University of South Carolina, Columbia meade@math.sc.edu
Matthew Miller, University of South Carolina, Columbia miller@math.sc.edu
David Wethey, University of South Carolina, Columbia wethey@biol.sc.edu

9:15 a.m.
Using delay differential equations in studying data from individuals infected with HIV1.
Patrick Nelson*, University of Michigan
(96392217)

10:00 a.m.
Linear Conjecture for Spread in Cooperative Models.
Bingtuan Li*, University of Utah
Hans F Weinberger, University of Minnesota
Mark A Lewis, University of Utah
(96392138)

10:30 a.m.
An Algebraic Combinatorial Model of Emerging Biochemical Reaction Networks.
Joseph S. Oliveira*, Pacific North West National Laboratory
Janet JonesOliveira, Pacific North West National Laboratory
Colin G. Bailey, Victoria University, Wellington
(9639264)

11:00 a.m.
A mathematical model of in vitro cancer cell growth and treatment with the antimitotic agent Curacin A.
Frank Kozusko*, Hampton University
PaoHsiu Chen, Dept. of Environmental \& Occupational Health, University of Pittsburg
Stephen G. Grant, MageeWomens Research Institute and University of Pittsburgh Cancer Institute
Billy W. Day, University of Pittsburgh Cancer Institute
John Carl Panetta, St. Jude Children's Research Hospital
(96392219)

Friday March 16, 2001, 9:30 a.m.11:50 a.m.
Special Session on Combinatorics and Graph Theory, I
Room 402, Gambrell Hall
Organizers:
Jerrold R. Griggs, University of South Carolina, Columbia griggs@math.sc.edu

9:30 a.m.
Domination DotCritical Graphs.
David P Sumner*, University of South Carolina
Tamara A Burton, University of South Carolina
(96305231)

10:00 a.m.
Grundy and Parsimoneous Proper Colorings of Graphs.
S T Hedetniemi, Clemson University
R. C. Laskar*, Clemson University
(96305111)

10:30 a.m.
A distancedegree condition and nonseparating paths.
Stephen C Locke*, Florida Atlantic University
H.J. Voss, Technical University Dresden
(96305241)

11:00 a.m.
Shattering News.
Richard P Anstee, University of British Columbia
Lajos Ronyai, Computer and Automation Institute, Hungarian
Attila Sali*, Department of Computer Science, Indiana UniversityPurdue University at Fort Wayne
(96305240)

11:30 a.m.
Equitable colorings of outerplanar graphs.
Alexandr V Kostochka*, University of Illinois at UrbanaChampaign
(96305118)

Friday March 16, 2001, 10:00 a.m.11:20 a.m.
Special Session on Analytic Number Theory, I
Room 151, Gambrell Hall
Organizers:
Michael A. Filaseta, University of South Carolina, Columbia filaseta@math.sc.edu
Ognian Trifonov, University of South Carolina, Columbia trifonov@math.sc.edu

10:00 a.m.
Turan's method and ridge approximation of harmonic functions.
Konstantin I Oskolkov*, University of South Carolina
(96341207)

10:30 a.m.
A New Irreducibility Test for Lacunary 0,1Polynomials.
Douglas B Meade*, University of South Carolina
(96311124)

11:00 a.m.
Further Results on Generalizations of Irreducibility Theorems of I. Schur.
Martha A Allen*, University of South Carolina
(96311185)

Friday March 16, 2001, 12:00 p.m.4:30 p.m.
Exhibit and Book Sale
Lobby, Gambrell Hall

Friday March 16, 2001, 1:15 p.m.2:20 p.m.
Invited Address
Welcome and Opening Remarks
Room 153, Gambrell Hall
Mathematics problems in the (re)construction of shape.
Room 153, Gambrell Hall
Herbert Edelsbrunner*, Duke University and Raindrop Geomagic
(9636801)

Friday March 16, 2001, 2:30 p.m.5:20 p.m.
Special Session on Discrete and Computational Geometry and Graph Drawing, II
Room 431, Gambrell Hall
Organizers:
Farhad Shahrokhi, University of North Texas
Laszlo A. Szekely, University of South Carolina, Columbia laszlo@math.sc.edu

2:30 p.m.
Cutting Circles into Pseudosegments and Improved Bounds for Incidences.
Boris Aronov, Polytechnic University
Micha Sharir*, Tel Aviv University
(9630560)

3:30 p.m.
Some Remarks on Combinatorial Geometry and Additive Number Theory.
Gy\"orgy Elekes*, E\"otv\"os University, Budapest
Imre Z. Ruzsa, R\'enyi Institute, Budapest
(9635284)

4:00 p.m.
Contact graphs of translative packings of convex discs in the plane.
Konrad J Swanepoel*, University of South Africa
(9635259)

4:30 p.m.
On Curves Morphings.
Alon Efrat*, University of Arizona
(9636882)

5:00 p.m.
Almost disjoint triangles in 3space  On a problem of Gil Kalai.
Gyula A Karolyi*, Eotvos University, Budapest
(9635268)

Friday March 16, 2001, 2:30 p.m.4:50 p.m.
Special Session on Algebraic Structures Associated with Lie Theory, I
Room 124, Gambrell Hall
Organizers:
Ben L. Cox, College of Charleston bcox@cofc.edu
Elizabeth Jurisich, College of Charleston jurisiche@math.cofc.edu
Oleg Smirnov, College of Charleston smirnovo@math.cofc.edu

2:30 p.m.
Explicit algebraic constructions on topological vertex operator algebras (Preliminary Report).
Fusun Akman*, Coastal Carolina University
(96317167)

3:00 p.m.
Two Realizations of Toroidal $\mathfrak{sl}(2)$.
Ben L Cox*, College of Charleston
(96317141)

3:30 p.m.
The Space of OnePoint Correlation Functions for Certain $c=24$ Holomorphic Vertex Operator Algebras.
Katherine L Hurley*, University of California, Santa Cruz
(96317126)

4:00 p.m.
Break

4:30 p.m.
Twisted vertex representations and spin groups.
Naihuan Jing*, North Carolina State Univ.
(96317139)

Friday March 16, 2001, 2:30 p.m.5:20 p.m.
Special Session on Combinatorics and Graph Theory, II
Room 402, Gambrell Hall
Organizers:
Jerrold R. Griggs, University of South Carolina, Columbia griggs@math.sc.edu

2:30 p.m.
On the circularcoloring integer critical graphs.
Bing Zhou*, Trent University
(96305166)

3:00 p.m.
The relaxed coloring game on chordal graphs.
Charles Dunn, Arizona State University
H. A Kierstead*, Arizona State University
(96305242)

3:30 p.m.
Defective Coloring Revisited.
Lenore Cowen*, Johns Hopkins University
(96305232)

4:00 p.m.
Graph Minors and Reliable Single Message Transmission.
Andre Kundgen*, California State University, San Marcos
Faith E Fich, University of Toronto
Mike Pelsmajer, University of Illinois
Radhika Ramamurthi, University of Illinois
(96305191)

4:30 p.m.
Density of Integral Sets with Missing Differences.
Daphne DerFen Liu*, California State University, Los Angeles
Xuding Zhu, National Sun Yatsen University, Taiwan
(96305187)

5:00 p.m.
Graph Partitions.
Pavol Hell*, Simon Fraser University
(96305147)

Friday March 16, 2001, 2:30 p.m.5:20 p.m.
Special Session on Approximation and Wavelets, I
Room 152, Gambrell Hall
Organizers:
Konstantin Oskolkov, University of South Carolina, Columbia oskolkov@math.sc.edu
Pencho Petrushev, University of South Carolina, Columbia pencho@math.sc.edu
Vladimir Temlyakov, University of South Carolina, Columbia temlyak@math.sc.edu

2:30 p.m.
Multiresolution Analysis Based on Hilbert Transform.
Peter G Binev*, University of South Carolina
(96341226)

3:00 p.m.
Constructions of wavelet frames.
Alexander Petukhov*, University of South Carolina
(9634198)

3:30 p.m.
On efficiency of numerical optimization in fuzzy $c$means clustering.
Yingkang Hu*, Georgia Southern University
Richard Hathaway, Georgia Southern University
(9634993)

4:00 p.m.
Break

4:30 p.m.
Entropic and Relaxed Entropic Schemes for Conservation Laws.
Bojan D Popov*, Vanderbilt University
(96341114)

5:00 p.m.
Wavelets and Besov regularity of solutions of elliptic PDE.
Marius Mitrea*, University of MissouriColumbia
(96335168)

Friday March 16, 2001, 2:30 p.m.5:20 p.m.
Special Session on Banach Spaces, II
Room 005, Gambrell Hall
Organizers:
George Androulakis, University of South Carolina, Columbia giorgis@math.sc.edu
Stephen Dilworth, University of South Carolina, Columbia dilworth@math.sc.edu
Maria K. Girardi, University of South Carolina, Columbia girardi@math.sc.edu

2:30 p.m.
Twisted sums and extensions of operators.
Nigel J Kalton*, University of Missouri
(9634648)

3:00 p.m.
QuasiBanach spaces that Encode Topological Information.
James W Roberts*, University of South Carolina
(96346142)

3:30 p.m.
Lebesgue spaces and the projective tensor product.
Qingying Bu, Kent State University
Joe Diestel*, Banach Center, Kent State
(96346218)

4:00 p.m.
The fixed point property for subsets of $c_0$.
Patrick N Dowling*, Miami University
Chris Lennard, University of Pittsburgh
Barry Turett, Oakland University
(96346210)

4:30 p.m.
Nonweakly compact, closed, bounded, convex subsets of $c_0$ and the failure of the FPP.
Paddy Dowling, Miami U.
Chris Lennard*, U. Pittsburgh and Miami U.
Barry Turett, Oakland U.
(96346237)

5:00 p.m.
Complemented isometric copies of $L_{1}$ in dual Banach spaces.
James N Hagler*, University of Denver
(9634694)

Friday March 16, 2001, 2:30 p.m.5:45 p.m.
Special Session on Geometry of Curves and Surfaces, I
Room 302, Gambrell Hall
Organizers:
Mohammad Ghomi, University of South Carolina, Columbia ghomi@math.sc.edu
Ralph E. Howard, University of South Carolina, Columbia howard@math.sc.edu

2:30 p.m.
Integrable Geometric Evolution Equations for Curves.
Thomas A. Ivey*, College of Charleston
(9635313)

3:00 p.m.
Evolving piecewise linear convex curves in the plane.
Alina Stancu*, Universite des Sciences et Technologies de Lille
(96353149)

3:30 p.m.
Constructing Knot Isotopies with Geometric Constraints Using Holonomic Space Curves.
Eddie Fuller*, Duke University
(96353140)

4:00 p.m.
A notion of criticality for ropelength.
Joseph H Fu*, University of Georgia
(96349196)

4:30 p.m.
Ropelength, thickness and conformal modulus of links.
Rob Kusner*, University of Massachusetts at Amherst
(96353192)

5:00 p.m.
Many knot energies are minimized by circles.
Aaron Abrams, University of Georgia
Jason H Cantarella*, University of Georgia
Joseph Fu, University of Georgia
Mohammad Ghomi, University of South Carolina
Ralph Howard, University of South Carolina
(96353216)

Friday March 16, 2001, 2:30 p.m.4:50 p.m.
Special Session on Analytic Number Theory, II
Room 151, Gambrell Hall
Organizers:
Michael A. Filaseta, University of South Carolina, Columbia filaseta@math.sc.edu
Ognian Trifonov, University of South Carolina, Columbia trifonov@math.sc.edu

2:30 p.m.
Factorization of polynomials with small Euclidean norm.
Robert F Murphy*, University of South Carolina
(96311221)

3:00 p.m.
On unionclosed families.
Theresa P Vaughan*, UNCGreensboro
(9630573)

3:30 p.m.
Nonuniformities in Chebyshev's Bias.
Richard H Hudson*, University of South Carolina
(96311125)

4:00 p.m.
Distribution of prime ideals of quadratic fields and prime values of binary quadratic forms.
Glyn Harman, University of London
Angel V Kumchev*, University of South Carolina
Philip Lewis, University of Wales
(96311223)

4:30 p.m.
New bounds for the Riemann zeta function and applications.
Kevin Ford*, University of South Carolina
(9631174)

Friday March 16, 2001, 2:30 p.m.4:55 p.m.
Special Session on Mathematical Biology, II
Room 321, Gambrell Hall
Organizers:
Douglas B. Meade, University of South Carolina, Columbia meade@math.sc.edu
Matthew Miller, University of South Carolina, Columbia miller@math.sc.edu
David Wethey, University of South Carolina, Columbia wethey@biol.sc.edu

2:30 p.m.
Nonlinear Phenomena in Population Dynamics: Models, Mathematical/Statistical Analyses, and Biological Experiments.
J. M Cushing*, University of Arizona
(96392106)

3:00 p.m.
Frequencydependent interactions and coexistence among species.
Jane Molofsky*, University of Vermont
James D Bever, Indiana University
Janis Antonovics, University of Virginia
Timothy J Newman, University of Virginia
(9639288)

3:30 p.m.
Discussion

4:00 p.m.
Discussion: Individual or Aggregate Models

4:30 p.m.
Discussion: Mathematics and BiologyA Stable Mixture?

Friday March 16, 2001, 2:30 p.m.5:50 p.m.
Special Session on Algebras, Lattices, Varieties, II
Room 247, Gambrell Hall
Organizers:
George F. McNulty, University of South Carolina mcnulty@math.sc.edu
Ralph S. Freese, University of Hawaii ralph@math.hawaii.edu
James B. Nation, University of Hawaii jb@math.hawaii.edu

2:30 p.m.
Solution of Birkhoff's problem and redefining the arithmetic of finite ordered sets.
Ralph N McKenzie*, Vanderbilt University
(96306108)

3:30 p.m.
On the variety generated by tournaments.
Miklos Maroti*, Vanderbilt University
(96308180)

4:00 p.m.
Varieties having Boolean factor congruences.
Ross Willard*, University of Waterloo
(9630895)

4:30 p.m.
Structure of subdirectly irreducible algebras in finitely decidable locally finite varieties.
Dejan Delic*, Vanderbilt University
(96308199)

5:00 p.m.
Interpretations Preserving Pseudorecusiveness.
Benjamin Wells*, University of San Francisco
(96308136)

5:30 p.m.
A note on homomorphic images, subalgebras and various products.
Boza R Tasic*, University of Waterloo, Canada
(9630875)

Friday March 16, 2001, 5:45 p.m.6:30 p.m.
Department of Mathematics Reception
Roof Garden, Gambrell Hall

Friday March 16, 2001, 6:30 p.m.7:30 p.m.
Erd\H os Memorial Lecture
Babe Ruth, Hank Aaron, Paul Erd{\H o}s, and me.
Room 153, Gambrell Hall
Carl Pomerance*, Bell Laboratories  Lucent Technologies
(9631106)
Saturday March 17, 2001

Saturday March 17, 2001, 8:00 a.m.4:30 p.m.
Meeting Registration
Lobby, Gambrell Hall

Saturday March 17, 2001, 8:00 a.m.10:50 a.m.
Special Session on Banach Spaces, III
Room 005, Gambrell Hall
Organizers:
George Androulakis, University of South Carolina, Columbia giorgis@math.sc.edu
Stephen Dilworth, University of South Carolina, Columbia dilworth@math.sc.edu
Maria K. Girardi, University of South Carolina, Columbia girardi@math.sc.edu

8:00 a.m.
Poincaretype inequalities and reverse doubling weights.
Ritva HurriSyrjanen*, University of Kentucky
(96346198)

8:30 a.m.
An asymptotically Hilbertian space failing the approximation property.
Cesar L Garcia*, Texas A\&M University
Peter G Casazza, University of Missouri
William B Johnson, Texas A\&M University
(9634627)

9:00 a.m.
Constructing isomorphic preduals of $\ell_1$.
Dale E. Alspach*, Oklahoma State University
(96346175)

9:30 a.m.
On the structure of the spreading models of a Banach space.
Edward Odell*, The University of Texas at Austin, Austin, TX
George Androulakis, University of South Carolina, Columbia
Thomas Schlumprecht, Texas A\&M University
(9634685)

10:00 a.m.
Heriditarily Indecomposable Banach Spaces and the Invariant Subspace Problem.
George Androulakis, University of South Carolina
Thomas B Schlumprecht*, Texas A&M University
(96346176)

10:30 a.m.
On contractively complemented subspaces of separable \(L_1\)preduals.
Ioannis Gasparis*, Oklahoma State University
(9634653)

Saturday March 17, 2001, 8:00 a.m.4:30 p.m.
Exhibit and Book Sale
Lobby, Gambrell Hall

Saturday March 17, 2001, 8:30 a.m.10:20 a.m.
Special Session on Discrete and Computational Geometry and Graph Drawing, III
Room 431, Gambrell Hall
Organizers:
Farhad Shahrokhi, University of North Texas
Laszlo A. Szekely, University of South Carolina, Columbia laszlo@math.sc.edu

8:30 a.m.
Topological Persistence and Simplification.
Herbert Edelsbrunner*, Duke University
David Letscher, Oklahoma State University
Afra Zomorodian, Stanford University
(96305211)

9:30 a.m.
Visibility Graphs of Simple Polygons.
James Abello*, AT\&T Shannon Laboratories
(9635235)

10:00 a.m.
Improved Approximations of Crossings in Graph Drawings and VLSI Layout Areas.
Guy Even*, Tel Aviv Univ.
Sudipto Guha, AT\&T Labs
Baruch Schieber, IBM T. J. Watson Research Center
(9636824)

Saturday March 17, 2001, 8:30 a.m.10:20 a.m.
Special Session on Approximation and Wavelets, II
Room 152, Gambrell Hall
Organizers:
Konstantin Oskolkov, University of South Carolina, Columbia oskolkov@math.sc.edu
Pencho Petrushev, University of South Carolina, Columbia pencho@math.sc.edu
Vladimir Temlyakov, University of South Carolina, Columbia temlyak@math.sc.edu

8:30 a.m.
Distribution of general interpolation arrays for exponential weights.
Steven B Damelin*, Georgia Southern University
(9634186)

9:00 a.m.
Bounds for polynomials with a unit discrete norm.
Evguenii A Rakhmanov*, USF
(96341173)

9:30 a.m.
Poisson transformation for imaginary Lobachevskii plane.
Igor' Chitikov*, St. Petersburg, Florida
(96333213)

10:00 a.m.
Interpolation by Functions of Several Variables.
Boris Shekhtman*, U.S.F. Tampa,Fl
(96341127)

Saturday March 17, 2001, 8:30 a.m.10:45 a.m.
Special Session on Geometry of Curves and Surfaces, II
Room 302, Gambrell Hall
Organizers:
Mohammad Ghomi, University of South Carolina, Columbia ghomi@math.sc.edu
Ralph E. Howard, University of South Carolina, Columbia howard@math.sc.edu

8:30 a.m.
Skew Loops and Quadric Surfaces.
Mohammad Ghomi*, University of South Carolina
Bruce Solomon, Indiana University
(96353179)

9:00 a.m.
Explicit Solutions to the HSurface Equation on Tori.
Henry C Wente*, The University of Toledo
(96353174)

9:30 a.m.
The Convex Hull Property and Topology of Hypersurfaces with Nonnegative Curvature.
Stephanie Alexander*, University of Illinois at UrbanaChampaign
Mohammad Ghomi, University of South Carolina
(96353224)

10:00 a.m.
The Second Hull of a Knotted Curve.
John M Sullivan*, University of Illinois
Jason Cantarella, Univ. of Georgia
Rob Kusner, UMass/Amherst
Greg Kuperberg, UC Davis
(96351184)

Saturday March 17, 2001, 8:30 a.m.10:50 a.m.
Special Session on Analytic Number Theory, III
Room 151, Gambrell Hall
Organizers:
Michael A. Filaseta, University of South Carolina, Columbia filaseta@math.sc.edu
Ognian Trifonov, University of South Carolina, Columbia trifonov@math.sc.edu

8:30 a.m.
Exponents of Class Groups of Real Quadratic Fields.
Gang Yu*, University of Michigan
(96311190)

9:00 a.m.
Heights of Algebraic Numbers over Finite Groups in PGL(2, \mathbb{Q}).
Gregory P Dresden*, Washington & Lee University
(96311220)

9:30 a.m.
Decomposition of polytopes and polynomials.
Shuhong Gao*, Clemson University
(96311214)

10:00 a.m.
Average Frobenius distributions for elliptic curves with prescribed torsion subgroups.
Kevin L James*, Clemson University
(96311208)

10:30 a.m.
On a character sum problem of H. Cohn.
Par M Kurlberg*, University of Georgia
(9631190)

Saturday March 17, 2001, 8:30 a.m.10:45 a.m.
Special Session on Algebras, Lattices, Varieties, III
Room 247, Gambrell Hall
Organizers:
George F. McNulty, University of South Carolina mcnulty@math.sc.edu
Ralph S. Freese, University of Hawaii ralph@math.hawaii.edu
James B. Nation, University of Hawaii jb@math.hawaii.edu

8:30 a.m.
Congruence lattices that force tranitivity.
Steve W Seif*, University of Louisville
(96306238)

9:00 a.m.
Edge Algebras and Equational Bounds on the Finite Algebra Membership Problem for Varieties.
Zoltan Szekely*, Gallaudet University
(96308230)

9:30 a.m.
Finitebasis problems and techniques.
Kirby A Baker*, University of California, Los Angeles
Ju Wang, Institute of Software, Academia Sinica, visiting U. of S. Carolina
(96308227)

10:00 a.m.
Compatibility of spaces with equations.
Walter Taylor*, University of Colorado
(96308107)

Saturday March 17, 2001, 8:30 a.m.10:50 a.m.
Session for Contributed Papers, I
Room 201, Gambrell Hall

8:30 a.m.
Notes on the equation $\sum x^k = (\sum x)^2$.
Andrew B Perry*, Springfield College
Cordelia Aitkin, Williams College
Thomas Colthurst, BBN
Kathryn Kollett, Williams College
Steven Levandosky, Stanford Univ.
Eugene Stern, Williams College
(96305102)

8:45 a.m.
The maximum toughness of a graph.
Kevin K Ferland*, Bloomsburg University
(9630508)

9:00 a.m.
Break

9:15 a.m.
A Question Concerning Graph Labeling.
John McSorley, Southern Illinois University
Walter D Wallis*, Southern Illinois University
(96305243)

9:30 a.m.
Murad's Generalization And Collatz's Problem.
Murad A AlDamen*, Jerash University
(9631110)

9:45 a.m.
Weakly prime ideals.
D D Anderson*, University of Iowa
Eric Smith, University of Iowa
(9631342)

10:00 a.m.
The Second Fraenkel Model.
Henry A Gore*, Jackson State University
(96303182)

10:15 a.m.
On The Diophantine Equation: A x + B y = C z.
Susil K Jena*, Bhubaneswar
(9631109)

10:30 a.m.
Lyapunov's Functions and Boundedness of the Solutions of Impulsive Hybrid Differental Equations.
Snezhnana G. Hristova*, Georgia Southern University
Don D. Fausett, Georgia Southern University
(96334159)

Saturday March 17, 2001, 9:00 a.m.10:50 a.m.
Special Session on Semigroups and Evolution Equations, I
Room 006, Gambrell Hall
Organizers:
Anton R. Schep, University of South Carolina, Columbia schep@math.sc.edu

9:00 a.m.
Operatorvalued Multiplier Theorems and Maximal Regularity for Evolution Equations.
Lutz Weis*, University of Karlsruhe
(96347203)

9:30 a.m.
Recent progress on maximal regularity.
Nigel J Kalton*, University of Missouri
(9634647)

10:00 a.m.
On the asymptotic behaviour of $C_0$semigroups with $H^\infty$ local resolvents.
Jan van Neerven*, Technical University of Delft
(96347205)

10:30 a.m.
Hyperbolicity of semigroups and Fourier multipliers.
Roman Shvydkoy*, University of MissouriColumbia
Yuri Latushkin, University of MissouriColumbia
(9634280)

Saturday March 17, 2001, 9:30 a.m.10:50 a.m.
Special Session on Algebraic Structures Associated with Lie Theory, II
Room 124, Gambrell Hall
Organizers:
Ben L. Cox, College of Charleston bcox@cofc.edu
Elizabeth Jurisich, College of Charleston jurisiche@math.cofc.edu
Oleg Smirnov, College of Charleston smirnovo@math.cofc.edu

9:30 a.m.
Multicolor partitions and generalized RogersRamanujan identities.
Kailash C Misra*, North Carolina State University
(96317123)

10:00 a.m.
Modules for Generalized KacMoody Lie algebras.
Elizabeth G Jurisich*, The College of Charleston
(96317120)

10:30 a.m.
On Completions and Crystal Bases of Some Representations of Quantum Groups.
Dijana Jakelic*, University of Texas, Austin
(96316228)

Saturday March 17, 2001, 9:30 a.m.10:50 a.m.
Special Session on Combinatorics and Graph Theory, III
Room 402, Gambrell Hall
Organizers:
Jerrold R. Griggs, University of South Carolina, Columbia griggs@math.sc.edu

9:30 a.m.
Generalized sumfree sets in abelian groups and constructions of spherical designs.
B\'{e}la Bajnok*, Gettysburg College
(9630592)

10:00 a.m.
On the Erd\H{o}sSimonovitsS\'os Conjecture about the antiRamsey numbers of cycles.
Tao Jiang, Michigan Technological University
Douglas B West*, University of Illinois
(96305137)

10:30 a.m.
New types of coding problems.
Gyula O.H. Katona*, R\'enyi Institute
(96305234)

Saturday March 17, 2001, 11:00 a.m.11:50 a.m.
Invited Address
Some thoughts on teaching mathematics.
Room 153, Gambrell Hall
Daniel J. Kleitman*, Massachusetts Institute of Technology

Saturday March 17, 2001, 2:00 p.m.2:50 p.m.
Invited Address
Harmonic analysis and image processing.
Room 153, Gambrell Hall
Albert A. Cohen*, University of Paris VI

Saturday March 17, 2001, 3:00 p.m.5:20 p.m.
Special Session on Discrete and Computational Geometry and Graph Drawing, IV
Room 431, Gambrell Hall
Organizers:
Farhad Shahrokhi, University of North Texas
Laszlo A. Szekely, University of South Carolina, Columbia laszlo@math.sc.edu

3:00 p.m.
Disentangling a polygon.
Janos Pach*, Courant Institute, NYU
Gabor Tardos, Renyi Institute, Hungarian Academy of Science
(9630536)

4:00 p.m.
Drawing Series Parallel Digraphs Symmetrically in Three Dimensions.
Seokhee Hong*, University of Sydney
Peter Eades, University of Sydney
(9636857)

4:30 p.m.
A multidimensional approach to forcedirected layouts of large graphs.
Pawel Gajer, Johns Hopkins University
Michael T Goodrich, Johns Hopkins University
Stephen G Kobourov*, University of Arizona
(9636821)

5:00 p.m.
A framework for the visualization of networks.
Janet M. Six, University of Texas at Dallas
Ionnis G. Tollis*, University of Texas at Dallas
(9636879)

Saturday March 17, 2001, 3:00 p.m.5:20 p.m.
Special Session on Algebraic Structures Associated with Lie Theory, III
Room 124, Gambrell Hall
Organizers:
Ben L. Cox, College of Charleston bcox@cofc.edu
Elizabeth Jurisich, College of Charleston jurisiche@math.cofc.edu
Oleg Smirnov, College of Charleston smirnovo@math.cofc.edu

3:00 p.m.
Functorial version of TitsKantorKoecher Construction.
Oleg Smirnov*, College of Charleston
(96317113)

3:30 p.m.
Root multiplicities of some indefinite KacMoody Lie Algebras.
Jennifer M. Hontz*, Meredith College
(9631718)

4:00 p.m.
Break

4:30 p.m.
Jantzen's sum formula and Ext groups between Verma modules.
Upendra B Kulkarni*, Truman State University
(96317189)

5:00 p.m.
On the Admissibility of Nilpotent Orbits of Simple Exceptional Real Lie Groups of Inner Type.
Alfred G Noel*, M.I.T
(9632212)

Saturday March 17, 2001, 3:00 p.m.6:20 p.m.
Special Session on Combinatorics and Graph Theory, IV
Room 402, Gambrell Hall
Organizers:
Jerrold R. Griggs, University of South Carolina, Columbia griggs@math.sc.edu

3:00 p.m.
40\% of a conjecture of F\"{u}redi on chain partitions of the Boolean lattice.
Timothy M Hsu, Pomona College
Mark Logan, Claremont McKenna College
Shahriar Shahriari*, Pomona College
Christopher Towse, Scripps College
(9630558)

3:30 p.m.
Polynomial LYMinequalities.
Christian Bey*, University of Rostock, Germany
(96305194)

4:00 p.m.
Some New Results on IsoperimetricType Problems.
Sergei L Bezrukov*, University of Wisconsin  Superior
(9630578)

4:30 p.m.
Circular Permutations with Low Discrepancy Consecutive $k$sums.
Richard P Anstee*, U.B.C., Canada
Ron Ferguson, U.B.C., Canada
Jerrold R Griggs, University of South Carolina
(96305164)

5:00 p.m.
Meet and join within the lattice of set partitions.
Rod Canfield*, University of Georgia
(96305131)

5:30 p.m.
Problem session

Saturday March 17, 2001, 3:00 p.m.6:20 p.m.
Special Session on Approximation and Wavelets, III
Room 152, Gambrell Hall
Organizers:
Konstantin Oskolkov, University of South Carolina, Columbia oskolkov@math.sc.edu
Pencho Petrushev, University of South Carolina, Columbia pencho@math.sc.edu
Vladimir Temlyakov, University of South Carolina, Columbia temlyak@math.sc.edu

3:00 p.m.
General Haar sytems and greedy approximation.
Anna Kamont*, Instytut Matematyczny PAN, Poland (permanent), University of South Carolina (visiting)
(96341134)

3:30 p.m.
Frequency localization of finite quadrature filters.
Morten Nielsen*, University of South Carolina
(96342104)

4:00 p.m.
Nonlinear approximation with Schauder bases.
R\'emi Gribonval*, IRISAINRIA
Morten Nielsen, IMI, Univ. South Carolina
(9634191)

4:30 p.m.
Monotonneiterative Technique of V. Lakshmikantham for Impulsive Hybrid Differential Equations with Fixed Moments ot Jumps.
Snezhana Hristova, Georgia Southern University
Cynthia Sikes*, Georgia Southern University
(96334165)

5:00 p.m.
On the polynomial gridge series.
Konstantin I Oskolkov*, University of South Carolina
(96342212)

5:30 p.m.
OneBit Quantization of Bandlimited Functions: New Results on SigmaDelta Systems.
Sinan Gunturk*, Institute for Advanced Study
(9634141)

6:00 p.m.
A criterion for convergence of Weak Greedy Algorithms.
Vladimir N Temlyakov*, University of South Carolina
(9634196)

Saturday March 17, 2001, 3:00 p.m.6:50 p.m.
Special Session on Banach Spaces, IV
Room 005, Gambrell Hall
Organizers:
George Androulakis, University of South Carolina, Columbia giorgis@math.sc.edu
Stephen Dilworth, University of South Carolina, Columbia dilworth@math.sc.edu
Maria K. Girardi, University of South Carolina, Columbia girardi@math.sc.edu

3:00 p.m.
Probabilistic approach to sections of star bodies.
Alexander Koldobsky*, University of MissouriColumbia
Mikhail Lifshits, St Petersburg State University, Russia
(9635239)

3:30 p.m.
Random vs. Pseudorandom Matrices, Banach Spaces.
Stanislaw J Szarek*, Case Western Reserve University and University Paris VI
(96346233)

4:00 p.m.
Families of Random Projections of Symmetric Convex Bodies.
Piotr Mankiewicz, Polish Academy of Science
Nicole TomczakJaegermann*, University of Alberta
(96346163)

4:30 p.m.
On the dynamics of homeomorphisms of the unit ball of $R^n$.
Nilson C Bernardes, Fluminense Federal University
Per Enflo*, Kent State University
(96346170)

5:00 p.m.
Almost isometries of balls.
Eva Matou\v{s}kov\'a*, Mathematical Institute, Prague, Czech Republic
(96346117)

5:30 p.m.
Asymptotic Structure in Banach Spaces.
Robert Judd*, University of MissouriColumbia
(96346200)

6:00 p.m.
Zeros of polynomials and matrices.
Branko Curgus, Western Washington University
Vania Mascioni*, Western Washington University
(96330119)

6:30 p.m.
Banach spaces with at least two nonisomorphic complex structures.
Razvan L Anisca*, University of Alberta
(9634697)

Saturday March 17, 2001, 3:00 p.m.6:15 p.m.
Special Session on Geometry of Curves and Surfaces, III
Room 302, Gambrell Hall
Organizers:
Mohammad Ghomi, University of South Carolina, Columbia ghomi@math.sc.edu
Ralph E. Howard, University of South Carolina, Columbia howard@math.sc.edu

3:00 p.m.
Nonpositively curved surfaces in Euclidean Space.
Andrejs E Treibergs*, University of Utah
(9635330)

3:30 p.m.
Isometric immersions of the Euclidean plane into Euclidean 4space.
Joel L Weiner*, University of Hawaii at Manoa
(96353128)

4:00 p.m.
Smooth minimal surfaces in the Heisenberg group.
Scott D Pauls*, Rice University
(9635316)

4:30 p.m.
On the finite time singularities of the heat flow for harmonic maps from surfaces.
Jie Qing*, UCSC
(96353145)

5:00 p.m.
Continua of singular minimal graphs.
John McCuan*, Georgia Tech
(96353150)

5:30 p.m.
Areaminimizing Surfaces in Cones.
Frank Morgan*, Williams College
(96349181)

Saturday March 17, 2001, 3:00 p.m.5:50 p.m.
Special Session on Semigroups and Evolution Equations, II
Room 006, Gambrell Hall
Organizers:
Anton R. Schep, University of South Carolina, Columbia schep@math.sc.edu

3:00 p.m.
The Sunduals of Strongly Continuous Operator Semigroups.
Willem A Luxemburg*, California Institute of Technology
(9634755)

3:30 p.m.
Essential Spectral Mapping Theorems for $\alpha$times Integrated Semigroups.
Colin R Day*, Aleen University
(96346144)

4:00 p.m.
Spectral mapping theorems in control theory and for nonlinear Schr\"{o}dinger and Euler equations.
Yuri Latushkin*, University of Missouri
(96347100)

4:30 p.m.
Spectral Mapping Theorem for a Linearization of the Twodimensional Euler Equation.
Milena O Stanislavova*, University of MassachusettsAmherst
Yuri Latushkin, University of MissouriColumbia
Charles Li, University of MissouriColumbia
(9633546)

5:00 p.m.
Regularity for a perturbed HamiltonJacobi equation.
Jerome A Goldstein, The University of Memphis
Yudi Soeharyadi*, Southern Illinois University
(9633565)

5:30 p.m.
Viscosity solutions and the HamiltonJacobiBellmann equation.
Jan A van Casteren*, University of Antwerp (UIA)
(96347130)

Saturday March 17, 2001, 3:00 p.m.5:50 p.m.
Special Session on Analytic Number Theory, IV
Room 151, Gambrell Hall
Organizers:
Michael A. Filaseta, University of South Carolina, Columbia filaseta@math.sc.edu
Ognian Trifonov, University of South Carolina, Columbia trifonov@math.sc.edu

3:00 p.m.
The hypergeometric method and the generalized RamanujanNagell equation.
Mark Bauer, University of Illinois
Michael A Bennett*, University of Illinois
(96311183)

3:30 p.m.
The Arithmetic of Partitions into Distinct Parts.
Jeremy Lovejoy*, University of Wisconsin
Scott Ahlgren, Colgate University
(96311169)

4:00 p.m.
The $p^i$regular partition function modulo $p^j$.
David K Penniston*, Furman University
(96311177)

4:30 p.m.
A qseries identity and the arithmetic of Hurwitz zeta functions.
Gwynneth GH Coogan*, University of Wisconsin, Madison
Ken Ono, University of Wisconsin, Madison
(96311215)

5:00 p.m.
A Distribution Problem for Powerfree Values of Irreducible Polynomials.
Brian D Beasley*, Presbyterian College
Michael Filaseta, University of South Carolina
(96311103)

5:30 p.m.
The Irreducibility of a Certain Class of Laguerre Polynomials.
Richard L Williams, Jr.*, Columbia, SC
Michael A Filaseta, University of South Carolina
(96311236)

Saturday March 17, 2001, 3:00 p.m.6:20 p.m.
Special Session on Algebras, Lattices, Varieties, IV
Room 247, Gambrell Hall
Organizers:
George F. McNulty, University of South Carolina mcnulty@math.sc.edu
Ralph S. Freese, University of Hawaii ralph@math.hawaii.edu
James B. Nation, University of Hawaii jb@math.hawaii.edu

3:00 p.m.
Rectangulation: a new centrality concept.
Keith A Kearnes*, University of Colorado
Emil W Kiss, Eotvos Lorand University
(9630889)

4:00 p.m.
Definable Principal Congruences and Solvability.
Matt A Valeriote*, McMaster University
(9630887)

4:30 p.m.
Dualizing a nondualizable algebra.
Robert W Quackenbush*, University of Manitoba
(96308209)

5:00 p.m.
CongruenceOrderable Quasivarieties.
Don L Pigozzi*, Iowa State University
(96308204)

5:30 p.m.
Implementing Equational and Quasiequational Logic on the Web.
Peter Jipsen*, Vanderbilt University
(96308178)

6:00 p.m.
Tarski theorems for selfdual varieties.
R. Padmanabhan*, University of Manitoba
(96306143)

Saturday March 17, 2001, 3:00 p.m.3:40 p.m.
Session for Contributed Papers, II
Room 201, Gambrell Hall

3:00 p.m.
On the Associativity of Tensor Products in nonEntropic Varieties.
Fred E.J. Linton*, Wesleyan University
(96308201)

3:15 p.m.
Uniformly Starlike and Uniformly Convex Functions.
Ioana C Magdas*, "BabesBolyai" Univ,ClujNapoca, Romania
(9633004)

3:30 p.m.
Solution of differential equations by comparison method.
Ali A. Salim*, Amman, Jordan
(9633452)
Sunday March 18, 2001

Sunday March 18, 2001, 8:30 a.m.9:20 a.m.
Invited Address
Branched polymers and dimensional reduction.
Room 153, Gambrell Hall
David C. Brydges*, University of Virginia
(9638203)

Sunday March 18, 2001, 9:30 a.m.11:20 a.m.
Special Session on Discrete and Computational Geometry and Graph Drawing, V
Room 431, Gambrell Hall
Organizers:
Farhad Shahrokhi, University of North Texas
Laszlo A. Szekely, University of South Carolina, Columbia laszlo@math.sc.edu

9:30 a.m.
String representations of graphs.
J\'anos Pach, NYU and Hungarian Academy of Sciences
G\'eza T\'oth*, MIT and Hungarian Academy of Sciences
(9635237)

10:00 a.m.
GallaiSylvester theorem for unit circles in the plane.
Rom Pinchasi*, Hebrew University of Jerusalem
(9635283)

10:30 a.m.
A sufficient condition for the existence of large empty convex polygons.
Pavel Valtr*, Charles University, Prague, Czech Republic
(96352151)

11:00 a.m.
Distances in finite point sets in the plane.
Jozsef Solymosi*, ETH Zurich
(9635269)

Sunday March 18, 2001, 9:30 a.m.12:20 p.m.
Special Session on Combinatorics and Graph Theory, V
Room 402, Gambrell Hall
Organizers:
Jerrold R. Griggs, University of South Carolina, Columbia griggs@math.sc.edu

9:30 a.m.
Protein structure matching  an extension of the largest clique size in Erd\H osR\'enyi random graphs.
\'Eva Czabarka*, National Institutes of Health, National Library of Medicine, National Center for Biotechnology Information
Stephen H Bryant, National Institutes of Health, National Library of Medicine, National Center for Biotechnology Information
Tom Madej, National Institutes of Health, National Library of Medicine, National Center for Biotechnology Information
John L Spouge, National Institutes of Health, National Library of Medicine, National Center for Biotechnology Information
(96305172)

10:00 a.m.
How many disjoint 2edge paths must a cubic graph have?
Dhruv Mubayi*, Georgia Tech
Alexander Kelmans, University of Peurto Rico and Rutgers University
(96305152)

10:30 a.m.
Diregularity of digraphs close to Moore bound.
Mirka Miller*, University of Newcastle
(96305245)

11:00 a.m.
Break

11:30 a.m.
Long cycles through specified edgesin $k$connected graphs.
Tristan M Denley*, University of Mississippi
Haidong Wu, University of Mississippi
(96305195)

12:00 p.m.
Edge list multicoloring trees: An extension of Hall's theorem.
Matthew Cropper, Eastern Kentucky University
Andras Gyarfas, Hungarian Academy of Sciences
Jeno Lehel*, University of Louisville
(96305247)

Sunday March 18, 2001, 9:30 a.m.12:20 p.m.
Special Session on Banach Spaces, V
Room 005, Gambrell Hall
Organizers:
George Androulakis, University of South Carolina, Columbia giorgis@math.sc.edu
Stephen Dilworth, University of South Carolina, Columbia dilworth@math.sc.edu
Maria K. Girardi, University of South Carolina, Columbia girardi@math.sc.edu

9:30 a.m.
Gabor systems and functionvalued inner products.
Peter G Casazza, Universtiy of Missouri
Mark C Lammers*, University of South Carolina
(96346121)

10:00 a.m.
Two characterizations of the standard unit vector basis of $l_1$.
David S Mitra*, Mercer University
(9634677)

10:30 a.m.
Linear Discrete Operators on the Disk Algebra.
Ivan V Ivanov*, Texas A&M Univeristy
Boris Shekhtman, University of South Florida
(96346206)

11:00 a.m.
Operators of Rademacher and Gaussian subcotype.
Aicke Hinrichs*, Texas A&M University College Station and FriedrichSchiller University Jena
(96346116)

11:30 a.m.
On d.c.\ functions and mappings.
Jakub Duda*, University of Missouri, Columbia
(9634781)

12:00 p.m.
On the optimality of a theorem of Elton on $\ell_1^n$ subsystems.
S. J. Dilworth, University of South Carolina
Denka N. Kutzarova*, Bulgarian Academy of Sciences, currently U.S.C.
(9634661)

Sunday March 18, 2001, 9:30 a.m.11:50 a.m.
Special Session on Geometry of Curves and Surfaces, IV
Room 302, Gambrell Hall
Organizers:
Mohammad Ghomi, University of South Carolina, Columbia ghomi@math.sc.edu
Ralph E. Howard, University of South Carolina, Columbia howard@math.sc.edu

9:30 a.m.
Unfoldings of Space Curves.
Mohammad Ghomi, University of South Carolina
Ralph Howard*, University of South Carolina
(96353133)

10:00 a.m.
Minimal Varieties and pharmonic maps.
Shihshu Walter Wei*, Department of Mathematics, University of Oklahoma
(96353193)

10:30 a.m.
An Analysis of CompletelyPositive TracePreserving Maps on $\mathcal{M}_2$.
Mary Beth Ruskai, University of Massachusetts Lowell
Stanislaw Szarek, Case Western Reserve University
Elisabeth M Werner*, Case Western Reserve University
(96381132)

11:00 a.m.
Spines and Topology of Thin Riemannian 3Manifolds.
Stephanie B Alexander, University of Illinois at UrbanaChampaign
Richard L Bishop*, University of Illinois at UrbanaChampaign
(96353222)

11:30 a.m.
Diffeomorphisms of the Circle and Hyperbolic Curvature.
David A Singer*, Case Western Reserve University
(9635350)

Sunday March 18, 2001, 9:30 a.m.11:20 a.m.
Special Session on Semigroups and Evolution Equations, III
Room 006, Gambrell Hall
Organizers:
Anton R. Schep, University of South Carolina, Columbia schep@math.sc.edu

9:30 a.m.
Nonlinear Semigroups and dispersive equations of KdV type.
Radu C Cascaval*, University of MissouriColumbia
(96335146)

10:00 a.m.
A Complete Generator Theory for Jointly Continuous Semigroups of Nonlinear Transformations.
John W Neuberger*, University of North Texas
(96346101)

10:30 a.m.
On the Regularization and Stabilization of Approximation Schemes for Semigroups.
Frank M Neubrander*, Louisiana State University
(96347109)

11:00 a.m.
Approximation of illposed evolution problems.
Serguei Piskarev*, Moscow State University, Science Research Computer Centre
(96347110)

Sunday March 18, 2001, 9:30 a.m.11:50 a.m.
Special Session on Analytic Number Theory, V
Room 151, Gambrell Hall
Organizers:
Michael A. Filaseta, University of South Carolina, Columbia filaseta@math.sc.edu
Ognian Trifonov, University of South Carolina, Columbia trifonov@math.sc.edu

9:30 a.m.
Prime values of polynomials and small class numbers.
Andrew Granville*, U of Georgia
Richard A Mollin, U of Calgary
(96311135)

10:00 a.m.
Computations on Catalan's Conjecture.
Jon Grantham*, IDA/CCS
Ferrell Wheeler, IDA/CCS
(9631143)

10:30 a.m.
Hall's Ray and the Markoff Spectrum.
Stephen J Astels*, University of Georgia
(96311171)

11:00 a.m.
Congruences for Degenerate Number Sequences.
Paul T Young*, University of Charleston
(96311115)

11:30 a.m.
Explicit Estimate on the Riemann zeta function.
Yuanyou F Cheng*, UNC at Chapel Hill
Sidney W Graham, Central Michigan University
(9631122)

Sunday March 18, 2001, 9:30 a.m.11:20 a.m.
Special Session on Algebras, Lattices, Varieties, V
Room 247, Gambrell Hall
Organizers:
George F. McNulty, University of South Carolina mcnulty@math.sc.edu
Ralph S. Freese, University of Hawaii ralph@math.hawaii.edu
James B. Nation, University of Hawaii jb@math.hawaii.edu

9:30 a.m.
Epimorphisms and dominions in varieties of lattices.
David R Wasserman*, University of California, Berkeley
(9630615)

10:00 a.m.
The Variety Generated By Tournaments.
Petar Markovic*, Vanderbilt University
(96308239)

10:30 a.m.
Extending partial projective planes.
James B. Nation*, University of Hawaii
(9635117)

11:00 a.m.
Lattice tensor products.
George A Gratzer*, University of Manitoba
Matthew Greenberg, McGill University
(96306155)

11:30 a.m.
Congruence Lattice Problems and Related Topics.
William A Lampe*, University of Hawaii
(9630862)
Inquiries: meet@ams.org