AMS Sectional Meeting Program by Day
Current as of Tuesday, April 12, 2005 15:08:56
1992 Spring Central Section Meeting
Springfield, MO, March 2021, 1992
Meeting #873
Associate secretaries: Andy R Magid, AMS amagid@ou.edu
Friday March 20, 1992

Friday March 20, 1992, 8:00 a.m.10:50 a.m.
Special Session on C*Algebras and Algebraic Topology, I
Room 344, Glass Hall

8:00 a.m.
Exotic index theory and the BaumConnes conjecture for foliations.
Steven Hurder*, University of Illinois, Chicago
(8734645) 
8:30 a.m.
Homotopy invariants for operator algebras.
Marius Dadarlat*, University of Maryland, College Park
(8734646) 
9:00 a.m.
Bilinear forms in equivariant Ktheory.
Claude Schochet*, University of Maryland, College Park
(8731937) 
9:30 a.m.
K theory for padic algebraic groups.
Paul Baum*, Pennsylvania State University, University Park
(8731930) 
10:00 a.m.
Operator Ktheory and representations of padic groups.
Roger Plymen*, University of Manchester, England
(8731926) 
10:30 a.m.
Index theory on buildings.
Nigel Higson*, Pennsylvania State University, University Park
(87319169)

8:00 a.m.

Friday March 20, 1992, 8:30 a.m.10:50 a.m.
Special Session on Partial Differential Equations, I
Room 227, Glass Hall

8:30 a.m.
Inertial manifolds and almostperiodic reactiondiffusion equations.
Pierre A. Vuillermot*, University of Texas, Arlington
(87335127) 
9:00 a.m.
Quenching for degenerate semilinear parabolic equations.
C. Y. Chan*, University of Southwestern Louisiana
P. K. Kong, University of Southwestern Louisiana
(87335159) 
9:30 a.m.
Singular solutions of the conformal Scalar curvature equation.
Robert C. McOwen*, Northeastern University
(87335126) 
10:00 a.m.
A characterization of criticality for the Schodinger operator.
Z. Zhao*, University of Missouri, Columbia
(87313133) 
10:30 a.m.
Informal Discussion

8:30 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis, I
Room 262, Glass Hall

9:00 a.m.
A comparison theorem on convergence rates of random walks on groups.
Kenneth A. Ross*, University of Oregon
Daming Xu, University of Oregon
(8736025) 
9:30 a.m.
On the entropy norm spaces and the Hardy space ReH^1.
W. Christopher Lang*, Mississippi State University
(8734209) 
10:00 a.m.
Brownian motion and thin sets in Vilenkin groups.
D. J. Grubb*, Kansas State University
(8734254) 
10:30 a.m.
Existence of a basis in the "big disk algebra" and in some C_cap lambda.
Florence Lancien*, Equipe D'analyses, France
(87342175)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Combinatorics and Discrete Geometry, I
Room 230, Glass Hall

9:00 a.m.
Relations of various conjectures on latin squares and straightening coefficients.
Rosa Q. Huang*, University of Michigan, Ann Arbor
(87305131) 
9:30 a.m.
Convexity conjectures concerning Gaussian coefficients.
Kathy M. O'Hara*, University of Iowa
Dennis Stanton, University of Minnesota, Minneapolis
(87305182) 
10:00 a.m.
Characteristic polynomials of hyperplane arrangements interpolating between root systems.
Tadeusz J\'ozefiak, Michigan State University
Bruce E. Sagan*, Michigan State University
(8735121) 
10:30 a.m.
Connections between fundamental bases of the homology of the partition lattice and the free Lie algebra.
Sheila Sundaram, University of Miami
Michelle L. Wachs*, University of Miami
(87305183)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Commutative Algebra, I
Room 343, Glass Hall

9:00 a.m.
Hilbert rings arising as pullbacks.
David F. Anderson*, University of Tennessee, Knoxville
David E. Dobbs, University of Tennessee, Knoxville
Marco Fontana, Universita di Roma, Italy
(8731332) 
9:30 a.m.
Catenarity of formal power series rings over a pullback.
David F. Anderson, University of Tennessee, Knoxville
David E. Dobbs*, University of Tennessee, Knoxville
Marco Fontana, Universita di Roma, Italy
Mohammed Khalis, University of Lyon I, France
(8731336) 
10:00 a.m.
The existence of flat covers.
Richard G. Belshoff*, Southwest Missouri State University
Edgar E. Enochs, University of Kentucky
Jinzhong Xu, University of Kentucky
(8731327) 
10:30 a.m.
Asymptotic primes and asymptotic grade for modules.
Daniel Katz*, University of Kansas
(87313162)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on The Geometry of Connections, I
Room 342, Glass Hall

9:00 a.m.
The structure of the cutlocus of the boundary for Riemannian surfaces with bounded inradius.
Stephanie B. Alexander, University of Illinois, UrbanaChampaign
Richard L. Bishop*, University of Illinois, UrbanaChampaign
(87353105) 
9:30 a.m.
The geometry of connections.
James Carlson*, University of Utah
(87358207) 
10:00 a.m.
Particle geometry and quantum electrodynamics.
Andrzej Derdzinski*, Ohio State University, Columbus
(87381120)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Classical Complex Analysis and Related Areas, I
Room 340, Glass Hall

9:00 a.m.
Some cases of the SheilSmall conjecture.
W. H. J. Fuchs*, Cornell University
(87330190) 
9:30 a.m.
Value distribution properties for meromorphic functions in the disk.
Linda R. Sons*, Northern Illinois University
(87330167) 
10:00 a.m.
Level sets of Bloch functions.
Steffen Rohde*, University of Michigan, Ann Arbor
(87330178) 
10:30 a.m.
On Julia sets of polynomials.
A. Hinkkanen*, University of Illinois, UrbanaChampaign
(87330172)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Lie Algebras, Cohomology, and New Applications to Quantum Mechanics, I
Room 237, Glass Hall

9:00 a.m.
Algebraic theory.
Francesco Iachello*, Yale University
(87381148) 
9:30 a.m.
On the algebra of tensor operators fo SU(n).
L. C. Biedenharn*, Duke University
(87320160) 
10:00 a.m.
Informal Discussion 
10:30 a.m.
Lie algebras, quantization, and deformations.
Palle E. T. Jorgensen*, University of Iowa
(8738103)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Semigroups, I
Room 345, Glass Hall

9:00 a.m.
Syntactic semigroups of codes.
H. J\"urgensen*, University of Western Ontario
(87320225) 
9:30 a.m.
Dense recognizable languages.
M. Ito*, Kyoto Sangyo University, Japan
M. Katsura, Kyoto Sangyo University, Japan
(8730533) 
10:00 a.m.
Inverse semigroup theoretic algorithms for properties of finitely generated subgroups of free groups.
Pascal Weil, University of Paris, France
Stuart W. Margolis*, University of Nebraska, Lincoln
John Meakin, University of Nebraska, Lincoln
Robert Ruyle, University of Nebraska, Lincoln
(8732019) 
10:30 a.m.
On the fundamental group of a Lie semigroup.
KarlHermann Neeb*, Technological Hochschule, Germany
(8732053)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Fourier Analysis, I
Room 350, Glass Hall

9:00 a.m.
Measure algebras with polynomial characters.
William C. Connett*, University of Missouri, St.\ Louis
Alan L. Schwartz, University of Missouri, St.\ Louis
(87333226) 
9:30 a.m.
Supports and localization of multiple Fourier series.
John F. Price*, Maharishi International University
(8734242) 
10:00 a.m.
Characterizations of convergence and Fourier character classes of trigonometric transforms.
David E. Grow*, University of Missouri, Rolla
\v Caslav V. Stanojevi\'c, University of Missouri, Rolla
(87342151) 
10:30 a.m.
Harmonic analysis on semisimple Lie groups.
Rebecca A. Herb*, University of Maryland, College Park
(87342152)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:30 a.m.
Special Session on Approximation Theory, I
Room 226, Glass Hall

9:00 a.m.
Shift invariant spaces and approximation.
Carl de Boor, University of Wisconsin, Madison
Ronald A. DeVore*, University of South Carolina, Columbia
Amos Ron, University of Wisconsin, Madison
(87341231) 
9:30 a.m.
Wavelet decomposition and shiftvariant spaces.
George Kyriazis*, University of South Carolina, Columbia
(87341230) 
10:00 a.m.
The rate of L_papproximation of certain projection operators.
Junjiang Lei*, Oklahoma State University
(87341163) 
10:30 a.m.
On the magnitude of Fourier coefficients.
Donald J. Newman, Temple University
Oved Shisha*, University of Rhode Island
(87342212)

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Special Session on Geometry of Affine Space, I
Room 346, Glass Hall

9:00 a.m.
Informal Discussion 
9:30 a.m.
Unipotent actions on affine space.
Dennis M. Snow*, University of Notre Dame
(8731472) 
10:00 a.m.
Chain rule for multivariable resultants.
Charles ChingAn Cheng, Oakland University
James H. McKay, Oakland University
Stuart SuiSheng Wang*, Oakland University
(87313109) 
10:30 a.m.
Informal Discussion

9:00 a.m.

Friday March 20, 1992, 9:00 a.m.10:50 a.m.
Session on Algebra
Room 347, Glass Hall

9:00 a.m.
Unitary amicable pairs to 10^8.
Rudolph M. Najar*, California State University, Fresno
(87311192) 
9:20 a.m.
On the index of CohenMacaulay local rings.
S. Ding*, Texas Technical University
(8731316) 
9:40 a.m.
On the conjugacy problem for onerelator monoids with finite order elements.
Louxin Zhang*, University of Waterloo
(87320114) 
10:00 a.m.
Some remarks on filtrations and plethysms.
Mihalis Maliakas*, University of Arkansas, Fayetteville
(87320144) 
10:20 a.m.
Locally distributive rings.
Mary H. Wright*, Southern Illinois University
(87316149) 
10:40 a.m.
Unitary **amicable integers.
Dale Woods*, University of Central Oklahoma
(87311143)

9:00 a.m.

Friday March 20, 1992, 11:00 a.m.11:50 a.m.
Invited Address
Quantization of Lie algebra cohomology and quasiexactly solvable Schrodinger operators.
Hutchens Auditorium, Glass Hall
Peter J. Olver*, University of Minnesota, Minneapolis
(8732201) 
Friday March 20, 1992, 1:30 p.m.2:20 p.m.
Invited Address
Nilpotent structures on principal bundles.
Hutchens Auditorium, Glass Hall
Ernst A. Ruh*, Ohio State University, Columbus
(8735380) 
Friday March 20, 1992, 3:00 p.m.5:50 p.m.
Special Session on Harmonic Analysis, II
Room 262, Glass Hall

3:00 p.m.
Sidon sets and quasiBanach spaces.
Nigel Kalton*, University of Missouri, Columbia
(8734389) 
3:30 p.m.
Symmetry conditions and operators on TriebelLizorkin spaces.
James E. Daly*, University of Colorado, Colorado Springs
(8734307) 
4:00 p.m.
A radial phitransform for radial functions.
Michael Frazier*, Michigan State University
(87341166) 
4:30 p.m.
Bounding zeros of H^p functions via concentrations.
Maria Girardi*, University of South Carolina, Columbia
(8733011) 
5:00 p.m.
Nonconvolution transforms with oscillating kernels that map B_1^0,1 into itself.
Gary Sampson*, Auburn University, Auburn
(8734202) 
5:30 p.m.
The role of hyperfinite sets in analysis.
Nader Vakil*, Western Illinois University
(87342238)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:50 p.m.
Special Session on Combinatorics and Discrete Geometry, II
Room 230, Glass Hall

3:00 p.m.
An algebraic characterization of planar graphs.
Dan Archdeacon*, University of Vermont
C. H. C. Little, Massey University, New Zealand
P. Bonnington, University of Waikato, New Zealand
(8730583) 
3:30 p.m.
On Hamilton cycles in connected vertex transitive graphs.
Henry H. Glover*, Ohio State University, Columbus
(87305220) 
4:00 p.m.
Functions that bound the number of edges in a graph.
Ruth Haas*, Smith College
Michael O. Albertson, Smith College
(87305112) 
4:30 p.m.
Embedding graphs in disjunctive products of lines.
Robert E. Jamison*, Clemson University
Selma Strahringer, Technological Hochschule Darmstadt, Germany
(87352221) 
5:00 p.m.
Pseudospherical crossing numbers.
Jim Lawrence*, George Mason University
(87305124) 
5:30 p.m.
On the average genus of graphs.
Saul Stahl*, University of Kansas
(8730543)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.6:50 p.m.
Special Session on Partial Differential Equations, II
Room 227, Glass Hall

3:00 p.m.
Hyperbolic systems of conservation laws with umbilic points.
GuiQiang Chen*, University of Chicago
Pui Tak Kan, University of Wisconsin, Madison
(87335194) 
3:30 p.m.
Informal Discussion 
4:00 p.m.
A priori estimates for solutions to nonlinear elliptic equations.
Wenxiong Chen, Southwest Missouri State University
Congming Li*, Institute for Advanced Study
(87335216) 
4:30 p.m.
The existence, uniqueness and regularity of nonlinear partial differential systems.
S. Walter Wei*, University of Oklahoma
(87335132) 
5:00 p.m.
Global solutions of Maxwell's equations in an electromagnetic field with the temperaturedependent electrial conductivity.
HongMing Yin*, University of Toronto
(8733504) 
5:30 p.m.
Nonstandard finitedifference schemes for PDE's.
Ronald E. Mickens*, Clark Atlanta University
(87365108) 
6:00 p.m.
An ellipticparabolic system of degenerate type.
Xiangsheng Xu*, University of Arkansas, Fayetteville
(87335101) 
6:30 p.m.
Fundamental solutions of subelliptic differential operators.
ChuanYi Xu*, University of Florida
(87335146)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:50 p.m.
Special Session on Commutative Algebra, II
Room 343, Glass Hall

3:00 p.m.
Hilbert coefficients and local cohomology in dimension 2.
Judith D. Sally*, Northwestern University
(8731366) 
3:30 p.m.
On graded rings associated to analytic deviation one ideals of small height.
Sam Huckaba*, Florida State University
(8731364) 
4:00 p.m.
Resolutions of Gorenstein ideals.
Hema Srinivasan*, University of Missouri, Columbia
(87313119) 
4:30 p.m.
Hilbert functions and Betti numbers.
E. Graham Evans, Jr*, University of Illinois, UrbanaChampaign
(87313137) 
5:00 p.m.
Passing across linkage.
Susan M. Palmer*, Southwest Missouri State University
(87313102) 
5:30 p.m.
Fixed rings of coherent regular rings.
Sarah Glaz*, University of Connecticut, Storrs
(87313128)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.6:50 p.m.
Special Session on The Geometry of Connections, II
Room 342, Glass Hall

3:00 p.m.
Nonabelian Hodge theory and intersection cohomology.
Kevin Corlette*, University of Chicago
(87357110) 
3:30 p.m.
Connection preserving actions of lattices in SL(n,R).
Renato Feres*, University of Chicago
(87358171) 
4:00 p.m.
On the local structure of collapsed manifolds.
Patrick Ghanaat*, University of Basel, Switzerland
(87353232) 
4:30 p.m.
Rigidity problems for hypersurfaces in complex projective spaces.
Gary R. Jensen*, Washington University
Emilio Musso, Istituo Matematico, Italy
(8735374) 
5:00 p.m.
Scalar curvature rigidity.
Maung Minoo*, McMaster University
(8735385) 
5:30 p.m.
Metric pinching of locally symmetric spaces.
Conrad Plaut*, Ohio State University, Columbus
(8735879)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:20 p.m.
Special Session on Classical Complex Analysis and Related Areas, II
Room 340, Glass Hall

3:00 p.m.
Extremal problems involving logarithmic and Green capacity.
Richard Laugesen*, Washington University
(87331106) 
3:30 p.m.
The boundary absolute continuity of quasiconformal mappings.
Juha Heinonen*, University of Michigan, Ann Arbor
(8733098) 
4:00 p.m.
Structural instability of exponential functions.
Zhuan Ye*, Purdue University, West Lafayette
(87330210) 
4:30 p.m.
Null sets for doubling and dyadic doubling measures.
JangMei Wu*, University of Illinois, UrbanaChampaign
(87328107) 
5:00 p.m.
Some recent results of potential theory.
M. Sodin*, Purdue University, West Lafayette
(87331199)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:50 p.m.
Special Session on Lie Algebras, Cohomology and New Applications to Quantum Mechanics, II
Room 237, Glass Hall

3:00 p.m.
Algebraic approaches to molecular electronic structure.
Josef Paldus*, University of Waterloo
(87381228) 
3:30 p.m.
Informal Discussion 
4:00 p.m.
The Lie algebraic approach to qseries and qdifference equations.
Willard Miller, Jr.*, University of Minnesota, Minneapolis
E. G. Kalnins, University of Waikato, New Zealand
(87333198) 
4:30 p.m.
Hidden symmetries of differential equations.
Barbara AbrahamShrauner*, Washington University
(87334193) 
5:00 p.m.
Coherent tensor operators.
Dan Flath*, University of South Alabama
(87322168) 
5:30 p.m.
About polynomial solutions of differential equations.
A. V. Turbiner*, University de Luminy, France
(87322202)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.6:50 p.m.
Special Session on C*Algebras and Algebraic Topology, II
Room 344, Glass Hall

3:00 p.m.
A new approach to Bott periodicity.
George A. Elliott, University of Copenhagen, Denmark
Ryszard Nest, University of Copenhagen, Denmark
Toshikazu Natsume*, State University of New York, Buffalo
(87319174) 
3:30 p.m.
Power maps and Hodge decomposition in Hochschild and cyclic homology.
Dan Burghelea*, Ohio State University, Columbus
(873461097) 
4:00 p.m.
Operator convolution algebras.
Edward G. Effros, University of California, Los Angeles
ZhongJin Ruan*, University of Illinois, UrbanaChampaign
(8734658) 
4:30 p.m.
Topological orbit equivalence.
Thierry Giordano, University of Ottawa
Ian Putnam*, University of Victoria
Christian Skau, University of Trondheim, Norway
(8731931) 
5:00 p.m.
Cyclic cocycles, index theory on open manifolds and Novikov conjecture for uniformly contractible spaces.
Guoliang Yu*, Mathematical Sciences Research Institute, Berkeley
(8735838) 
5:30 p.m.
Hermitian sheaves in operator theory.
Keren Yan*, Indiana UniversityPurdue University, Indianapolis
(87347211) 
6:00 p.m.
Quantum Riemann surfaces.
S. Klimek*, Indiana UniversityPurdue University, Indianapolis
(87381197) 
6:30 p.m.
"Adiabatic" cobordism theorem for the analytic torsion and the etainvariant.
Krzysztof Wojciechowski*, Indiana UnivPurdue University at Indianapolis
(87357196)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:50 p.m.
Special Session on Semigroups, II
Room 345, Glass Hall

3:00 p.m.
The largest proper ideals of certain transformation semigroups.
K. D. Magill, Jr.*, State University of New York, College at Buffalo
(8732015) 
3:30 p.m.
Endormorphism monoids of generators in categories of acts.
Ulrich Knauer*, University of Oldenburg, Germany
(87320177) 
4:00 p.m.
S_nnormal semigroups.
Robert B. McFadden*, University of Louisville
(87320158) 
4:30 p.m.
Description of commutative semigroups in terms of their partial automorphisms.
Boris M. Schein, University of Arkansas, Fayetteville
Shu Zhang*, University of Arkansas, Fayetteville
(87320121) 
5:00 p.m.
Green's relations on G_Xnormal semigroups.
Inessa Levi*, University of Louisville
(8732012) 
5:30 p.m.
Idempotent endomorphisms in finitedimensional v*algebras.
Andrew Averill*, Maharishi International Univeristy
(8732041)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.6:20 p.m.
Special Session on Fourier Analysis, II
Room 350, Glass Hall

3:00 p.m.
A characterization and a generalization of continuity.
J. Marshall Ash, DePaul University
Jonathan Cohen*, DePaul University
Christopher Freiling, California State University, San Bernardino
Eric Rieders, DePaul University
(8732671) 
3:30 p.m.
Orthonormal trigonometric polynomial bases and the theory of wavelets.
K. I. Oskolkov*, Queen's University
(87342154) 
4:00 p.m.
Eigenfunction method of solvability of periodic BVP's for semilinear hyperbolic equations.
P. S. Milojevi\'c*, New Jersey Institute of Technology
(87347153) 
4:30 p.m.
Boundedness of maximal operator and some combinatorial estimates.
Bogdan Baishanski*, Ohio State University, Columbus
(87342217) 
5:00 p.m.
New elementary transcendental functions and generalzied trigonometric series.
Everett McCoy*, University of Missouri, Rolla
(87342241) 
5:30 p.m.
A spectral version of harmonic analysis on R^n.
William O. Bray*, University of Maine
(87342246) 
6:00 p.m.
Characterization of Lipschitz spaces via the commutator operator of Coifman, Rochberg, and Weiss.
Maciej Paluszynski, Washington University
Mitchell Taibleson*, Washington University
Guido Weiss, Washington University
(87342247)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:20 p.m.
Special Session on Approximation Theory, II
Room 226, Glass Hall

3:00 p.m.
Exponential decay and resolvents of banded infinite matrices.
Dale T. Smith*, Gadsden, Alabama
(87347155) 
3:30 p.m.
Wavelet decompositions via multiresolution.
Carl de Boor, University of Wisconsin, Madison
Ronald A. DeVore, University of South Carolina
Amos Ron*, University of Wisconsin, Madison
(87341239) 
4:00 p.m.
L^p properties of multivariate cardinal splines.
W. R. Madych*, University of Connecticut, Storrs
(87341206) 
4:30 p.m.
An analytic monotone extension of boundary data.
Xingping Sun, Southwest Missouri State University
Xiangming Yu*, Southwest Missouri State University
(87341240) 
5:00 p.m.
Univariant appproximation by superpositions of a sigmoidal function.
Bo Gao, Temple University
Yuan Xu*, University of Arkansas, Little Rock
(87341156)

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.5:50 p.m.
Special Session on Geometry of Affine Space, II
Room 346, Glass Hall

3:00 p.m.
G_alpha actions on C^n and primitive ideals in enveloping algebras of nilpotent Lie algebras.
David R. Finston*, New Mexico State University, Las Cruces
Mai Gehrke, New Mexico State University, Las Cruces
(8731473) 
3:30 p.m.
On Jacobian conjecture.
T. T. Moh*, Purdue University, West Lafayette
(8731355) 
4:00 p.m.
Homotopy of sections of projective modules.
Satyagopol Mandal*, University of Kansas
(8731368) 
4:30 p.m.
On the automorphisms of k[X,Y,Z].
Gene Freudenburg*, Washington University
(8731460) 
5:00 p.m.
Informal Discussion

3:00 p.m.

Friday March 20, 1992, 3:00 p.m.4:30 p.m.
Session on Combinatorics, Applications, Geometry and Topology
Room 347, Glass Hall

3:00 p.m.
Counting vetices and edges in Penrose tilings.
Catherine A. Gorini*, Maharishi International University
Robert L. Wofford, Livingston Manor, New York
(8735182) 
3:20 p.m.
Dependence systems: Mappings, constructions, congruences.
Marcin Jan Schroeder*, Southern Illinois University
(87306141) 
3:40 p.m.
Expansiveness and shift homeomorphisms.
Fred Worth*, Henderson State University
(87354142) 
4:00 p.m.
Studies on optimum preventive maintenance policies for general repair result.
Haiyan Gu*, Shanghai University of Technology, China
(8736022) 
4:20 p.m.
Semimodules and generalizations of the algebra of binary relations.
Jack M. Anderson*, South Dakota State University
Fan Zhang, South Dakota State University
(87320244)

3:00 p.m.