
AMS Sectional Meeting Program by Day
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1998 Spring Southeastern Sectional Meeting
Louisville, KY, March 2021, 1998
Meeting #931
Associate secretaries: Robert J Daverman, AMS daverman@math.utk.edu
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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)
Inquiries: meet@ams.org

