
AMS Sectional Meeting Program by Day
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1997 Fall Central Sectional Meeting
Milwaukee, WI, October 2425, 1997
Meeting #927
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Saturday October 25, 1997

Saturday October 25, 1997, 8:00 a.m.12:00 p.m.
Meeting Registration
Lobby, Engineering and Mathematical Sciences Building

Saturday October 25, 1997, 8:00 a.m.10:50 a.m.
Special Session on Operator Theory and Function Spaces, III
Room E170, Engineering and Mathematical Sciences Building Organizers: \v Zeljko \v Cu\v ckovi\'c, University of Toledo zcuckovi@math.utoledo.edu

8:00 a.m.
Concurrence of Uniqueness and Boundedness Conditions
Boris Korenblum*,
(9273068)

8:30 a.m.
Extending solutions of holomorphic partial differential equations across real hypersurfaces
Peter Ebenfelt, Royal Institute of Technology, Stockholm
Dmitry Khavinson*, University of Arkansas
Harold Shapiro, Royal Institute of Technology, Stockholm
(9273214)

9:00 a.m.
Smoothness of mappings of $B_n$ into $C^n$
Patrick P. Ahern*, University of WisconsinMadison
Hassan Youssfi, University of Marseille
(92732193)

9:30 a.m.
Injectivity of an integral operator in potential theory
S Shapiro*,
Ebenfelt,
Khavinson,
(92730104)

10:00 a.m.
Counterexample to infinite dimensional Carleson embedding theorem
Alexander Volberg*,
(92730186)

10:30 a.m.
The truncated moment problem for the unit disk and unit circle
Ra\'ul E. Curto*, The University of Iowa
(92747208)

Saturday October 25, 1997, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Room W101, Engineering and Mathematical Sciences Building

Saturday October 25, 1997, 8:30 a.m.10:50 a.m.
Special Session on Low Dimensional Dynamics, III
Room E180, Engineering and Mathematical Sciences Building Organizers: Karen M. Brucks, University of WisconsinMilwaukee kmbrucks@csd.uwm.edu
Beverly E. J. Diamond, University of Charleston bdiamond@nsf.gov

8:30 a.m.
Homeomorphisms of onedimensional hyperbolic attractors
James Jacklitch,*, Montana State University
(92758174)

9:00 a.m.
What are the $\omega$ limit sets?
Paul D. Humke*, St. Olaf College
(92726158)

9:30 a.m.
Friedland's Entropy for Commuting Maps
William Geller*, Indiana UniversityPurdue University Indianapolis
Mark Pollicott, Manchester University
(92758265)

10:00 a.m.
Perturbations of interval maps
Micha{\l} Misiurewicz*, Indiana University  Purdue University Indianapolis
(92758178)

10:30 a.m.
Onedimensional dynamics, inverse limit spaces, and the pseudoarc
Louis S. Block*, University of Florida
James E. Keesling, University of Florida
(92754168)

Saturday October 25, 1997, 8:30 a.m.10:45 a.m.
Special Session on Concentration Phenomena in Differential Equations, III
Room W130, Engineering and Mathematical Sciences Building Organizers: Lia Bronsard, McMaster University bronsard@icarus.math.mcmaster.ca
WeiMing Ni, University of Minnesota

8:30 a.m.
Remarks on the stability of pointcondensation solutions on a closed curve
Izumi Takagi*, Tohoku University
(9273584)

9:00 a.m.
Qualitative Behavior of Solutions of a Chemotactic Diffusion System
Xuefeng Wang*, Tulane University
(9273542)

9:30 a.m.
Break

9:45 a.m.
Sphericity in multiparticle diffusion.
Nick D Alikakos*, Uof Tenn. and U of Athens
Giorgio Fusco,
Gieri Simonett,
(92735117)

10:15 a.m.
Blowup and Life Span of Solutions for a Semilinear Diffusion Equation
Eiji Yanagida*,
(9273559)

Saturday October 25, 1997, 8:30 a.m.10:50 a.m.
Special Session on Geometric Topology and Geometric Group Theory, III
Room E159, Engineering and Mathematical Sciences Building Organizers: Fredric Davis Ancel, University of WisconsinMilwaukee ancel@csd.uwm.edu
Craig R. Guilbault, University of WisconsinMilwaukee craigg@csd.uwm.edu

8:30 a.m.
Representing homology classes of 4manifolds
Gerard A. Venema*, Calvin College
Vo Thanh Liem, University of Alabama
(92757289)

9:00 a.m.
Grushko's Theorem for Surfaces
John R. Stallings*, University of California, Berkeley
(9272078)

9:30 a.m.
Automorphisms of Coxeter Groups
Ruth M Charney*, Ohio State University
Michael W Davis, Ohio State University
(92720252)

10:00 a.m.
The topology at infinity of $Out(F_n)$
Mladen Bestvina, University of Utah
Mark Feighn*, Rutgers Universtiy  Newark
(92720167)

10:30 a.m.
Solvable subgroups of $Out(F_n)$ are virtually abelian
Mladen Bestvina,
Mark Feighn,
Michael Handel*,
(92720185)

Saturday October 25, 1997, 8:30 a.m.10:50 a.m.
Special Session on Mathematics in Industry, I
Room E140, Engineering and Mathematical Sciences Building Organizers: Michael Benedikt, Lucent Technologies benedikt@research.belllabs.com

8:30 a.m.
LargeScale Computational Science Projects on the Argonne Center for Collaborative Science and Technology Computing Facility .
Michael Minkoff*, Argonne National Laboratory
(92768369)

9:00 a.m.
Industrial Mathematics Program and Manufacturing Applications at University of Illinois at Chicago.
Floyd B. Hanson*, University of Illinois at Chicago
(92790316)

9:30 a.m.
A Perspective on Industrial Applied Logic.
Curtis D Tuckey*, Bell Laboratories
(92703302)

10:00 a.m.
Pricing cash flow sensitive insurance contracts: a diffusion approach.
Stephen J. Mildenhall*, CNA RE
(92760310)

10:30 a.m.
Probablistic Models of Cellular Telephone Systems
Philip J Fleming*, Motorola, Inc.
(92760234)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Computability Theory, III
Room E150, Engineering and Mathematical Sciences Building Organizers: Steffen Lempp, University of Wisconsin, Madison lempp@math.wisc.edu
Robert I. Soare, University of Chicago soare@cs.uchicago.edu

9:00 a.m.
A Basis Theorem for Perfect Sets
Theodore A. Slaman*, University of California, Berkeley
Marcia J. Groszek, Dartmouth College
(92704121)

9:30 a.m.
Hypersimplicity and the enumeration degrees below ${\bf 0^\prime_e}$
Andr\'e Nies, University of Chicago
Andrea Sorbi*, University of Siena
(92703102)

10:00 a.m.
Computability of Models of $\cal{P\!A}$ from Certain Enumerations
Alex M. McAllister*, Dartmouth College
(9270356)

10:30 a.m.
Large ``cardinals'' in constructive ZermeloFraenkel set theory
Michael Rathjen*, University of Leeds
(9270347)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Number Theory and Cryptography, I
Room E228, Engineering and Mathematical Sciences Building Organizers: Eric Bach, University of WisconsinMadison bach@cs.wisc.edu
Rene Peralta, University of WisconsinMilwaukee peralta@blatz.cs.uwm.edu

9:00 a.m.
The Solution of Polynomial Equations Modulo a Prime.
A. O. L. Atkin*, University of Illinois at Chicago
(92711354)

9:30 a.m.
A secure digital signature system with verification ten times faster than RSA
Daniel J Bernstein*,
(9271165)

10:00 a.m.
A General theory of Codes.
G. R. Blakley*, Texas A&M University
I. Borosh, Texas A&M University
(92794353)

10:30 a.m.
On the difficulty of comparing cryptosystems.
Daniel Bleichenbacher*, Bell Laboratories, Murray Hill, NJ
(92711352)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis and Its Applications, III
Room W119, Engineering and Mathematical Sciences Building Organizers: LungKee Chen, Oregon State University
Dashan Fan, University of WisconsinMilwaukee fan@csd.uwm.edu
YiBiao Pan, University of Pittsburgh

9:00 a.m.
Discussion

10:00 a.m.
Oscillatory integrals associated to canonical relations of the type FOLDCUSP
Andrew Comech*, The Fields Institute & University of Toronto
(92743233)

10:30 a.m.
Sharp pnorm estimates for the Green's kernel for random walks on a tree.
Tony L. Hinrichs, Washington University
Mitchell H. Taibleson*, Washington University
(92743270)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Rings and Modules, III
Room W110, Engineering and Mathematical Sciences Building Organizers: Karl Andrew Kosler, University of Wisconsin CentersWaukesha kkosler@uwcmail.uwc.edu
Shubhangi S. Stalder, University of Wisconsin CentersWaukesha sstalder@uwc.edu

9:00 a.m.
A change of rings for various finitistic dimensions.
Jay A Shapiro*, George Mason University
(92716235)

9:30 a.m.
CSRings and Nakayama Permutations
Mohamed F. Yousif*, The Ohio State University
(92716271)

10:00 a.m.
Weakly Selfinjective Matrix Rings
S. K. JAIN*,
S. JHINGAN,
P. KANWAR,
(92716153)

10:30 a.m.
Nonsingular Semiperfect CSRings
S. BARTHWAL,
S. K. JAIN,
P. KANWAR,
S. R. LOPEZPERMOUTH*,
(92716154)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Enveloping Algebras and Quantum Groups, III
Room E160, Engineering and Mathematical Sciences Building Organizers: Ian M. Musson, University of WisconsinMilwaukee musson@csd.uwm.edu
Yi Ming Zou, University of WisconsinMilwaukee ymzou@csd.uwm.edu

9:00 a.m.
Free Subalgebras in Division Algebras.
Alexander Lichtman*, University of Wisconsin, Parkside
(92716364)

9:30 a.m.
The structure of the highest weight modules arising from quantum groups at $ p^r $th root of 1.
Zongzhu Lin*, Kansas State University
(92717321)

10:00 a.m.
Combinatorics of Demazure modules for quantum affine Lie algebras
Kailash C. Misra*, North Carolina State University
(92717164)

10:30 a.m.
The Goldie Quotient Ring of the Enveloping Algebra of a Classical Simple Lie Superalgebra
Ian M Musson*, Univ. of WisconsinMilwaukee
(92717274)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Eigenvalue Problems for Differential Equations, III
Room W129, Engineering and Mathematical Sciences Building Organizers: Hans W. Volkmer, University of WisconsinMilwaukee volkmer@csd4.milw.wisc.edu
Paul A. Binding, University of Calgary binding@acs.ucalgary.ca

9:00 a.m.
Eigenfunction and harmonic function estimates in domains with horns and cusps
Michael Cranston,
Yi Li*,
(9273573)

9:40 a.m.
Explicit Asymptotic Formulas for Eigenvalues and Eigenfunctions for One and Two Dimensional Problems
Joyce R. McLaughlin, Prof.*,
Arturo Portnoy, Prof.,
(92735294)

10:20 a.m.
Wegner Estimates: Some Results and Problems
G\"{u}nter Stolz*, University of Alabama at Birmingham
(92781123)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Symplectic Topology and Quantum Cohomology, III
Room E204, Engineering and Mathematical Sciences Building Organizers: YongGeun Oh, University of Wisconsin oh@math.wisc.edu
Yongbin Ruan, University of Utah ruan@math.wisc.edu

9:00 a.m.
A Formula for Holomorphic Sections of Tautological Line Bundles on DeligneMumford Moduli Spaces and its Applications
YuanPin Lee*, University of California at Berkeley
(92758125)

9:30 a.m.
Uniformization using (nonAbelian) SW equations.
Naichung Conan Leung*, University of Minnesota
(92758196)

10:00 a.m.
Invariants of Legendrian knots
Yakov Eliashberg*, Stanford University
Helmut Hofer, ETH, Zurich
(92758245)

10:30 a.m.
Degeneration of K\"{a}hlerEinstein metrics on complete K\"{a}hler Manifolds
Peng Lu*, University of Minnesota
Conan N. Leung, University of Minnesota
(92758228)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Analysis with Wavelets, III
Room W120, Engineering and Mathematical Sciences Building Organizers: Gilbert G. Walter, University of WisconsinMilwaukee ggw@csd.uwm.edu
Ahmed I. Zayed, University of Central Florida zayed@pegasus.cc.ucf.edu

9:00 a.m.
The Sobolev regularity of wavelets
Amos Ron*, UWMadison
Zuowei Shen, National University of Singapore
(9274258)

9:30 a.m.
Extensions and Applications of Positive Wavelet Expansions
David K. Ruch*, Sam Houston State University
Patrick J. Van Fleet, Sam Houston State University
(9274125)

10:00 a.m.
Multiwavelet Integer to Integer Transformations
Patrick J. Van Fleet*, Sam Houston State University
(9274127)

10:30 a.m.
Wavelets in closed form
Gilbert G. Walter*, UWMilwaukee
(92742263)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Differential Geometry, III
Room E220, Engineering and Mathematical Sciences Building Organizers: Hongyou Wu, Northern Illinois University wu@math.niu.edu

9:00 a.m.
Catastrophic phenomena in soap bubble experiments.
Henry C. Wente*, University of Toledo
(92749367)

9:40 a.m.
Discrete curves and their discrete integrable flows
Franz J Pedit*,
(92753118)

10:20 a.m.
Line Congruences and the Space of Lines
Mary D. Shepherd*, SUNY College at Potsdam
(9275397)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Semigroups and Their Applications, III
Room E230, Engineering and Mathematical Sciences Building Organizers: Karl E. Byleen, Marquette University karlb@marque.mscs.mu.edu
Peter R. Jones, Marquette University jones@mscs.mu.edu

9:00 a.m.
Monoid deformations and group representations
Mohan S Putcha*, North Carolina State Univ
(92720105)

9:30 a.m.
Quasiregular Algebraic Monoids
Lex E. Renner*, University of Western Ontario
(92720277)

10:00 a.m.
Flatness properties of $S$acts
Sydney BulmanFleming*, Wilfrid Laurier University
(92720136)

10:30 a.m.
Free semigroups in the variety $x^2=x^3$.
Joseph B. Stephen*, Northern Illinois University
(92720376)

Saturday October 25, 1997, 9:00 a.m.10:50 a.m.
Special Session on Applications of Model Theory to Analysis and Topology, III
Room E129, Engineering and Mathematical Sciences Building Organizers: Paul J. Bankston, Marquette University paulb@marque.mscs.mu.edu
H. Jerome Keisler, University of Wisconsin

9:00 a.m.
More on the number of ultrapowers of the reals.
Alan S Dow*, York University
Jianping Zhu, Nanjing University
(92754342)

9:30 a.m.
Elementary submodels and the real line
Franklin D Tall*, University of Toronto
(92704141)

10:00 a.m.
What `Model Complete' Means in the Context of Compact Hausdorff Spaces
Paul Bankston*, Marquette University
(9275460)

10:30 a.m.
Forcing and Michael Spaces
Robert E Beaudoin*, Sensimetrics Corp.
(92703159)

Saturday October 25, 1997, 9:30 a.m.10:40 a.m.
Special Session on KTheory and Motives, III
Room W109, Engineering and Mathematical Sciences Building Organizers: Daniel Richard Grayson, University of Illinois, UrbanaChampaign dan@math.uiuc.edu

9:30 a.m.
Towards a Category of Mixed Elliptic Motives
Owen Patashnick*, University of Chicago
(92719295)

10:00 a.m.
Mod $p$ $K$theory in characteristic $p>0$.
Marc Levine*, Northeastern University
Thomas Geisser, Universitaet Essen
(92719299)

Saturday October 25, 1997, 11:00 a.m.11:50 a.m.
Invited Address
GL and functor cohomology
Room E190, Engineering and Mathematical Sciences Building
Andrei Suslin*, Northwestern University

Saturday October 25, 1997, 1:30 p.m.2:20 p.m.
Invited Address
Spikelayers in nonlinear diffusion systems
Room E190, Engineering and Mathematical Sciences Building
Wei Ming Ni*, University of Minnesota

Saturday October 25, 1997, 2:30 p.m.5:50 p.m.
Special Session on Computability Theory, IV
Room E150, Engineering and Mathematical Sciences Building Organizers: Steffen Lempp, University of Wisconsin, Madison lempp@math.wisc.edu
Robert I. Soare, University of Chicago soare@cs.uchicago.edu

2:30 p.m.
Located Sets and Reverse Mathematics
Stephen G Simpson*, Penn State University
(9270349)

3:00 p.m.
Reverse Mathematics and Fully Ordered Groups
David Reed Solomon*, Cornell University
(9270353)

3:30 p.m.
On the Order of Queries
Richard Beigel,
Richard Chang, Univ. of MD. at Balt. County
William I Gasarch*, Univ. of MD. at College Park
Jacob Lurie, Harvard University
Timothy McNichol, Ottawa University
(9270335)

4:00 p.m.
The Convergence Index of an R.E. Set
Tim McNicholl*, Ottawa University
(92703217)

4:30 p.m.
Lattice Embeddings and ANR Degrees
Stephen M Walk*, University of Notre Dame
(9270344)

5:00 p.m.
Some Theorems on Computably Enumerable Algebras
Bakhadyr Khoussainov, Dr.*, University of Auckland, New Zealand
(92703267)

5:30 p.m.
Effectively presented linear orders
Steffen Lempp*, University of Wisconsin
(92703138)

Saturday October 25, 1997, 2:30 p.m.4:20 p.m.
Special Session on KTheory and Motives, IV
Room W109, Engineering and Mathematical Sciences Building Organizers: Daniel Richard Grayson, University of Illinois, UrbanaChampaign dan@math.uiuc.edu

2:30 p.m.
$K$theory and the primitive toplogy.
Mark E Walker*, University of Nebraska  Lincoln
(92719268)

3:00 p.m.
A look at $K(End(R))_{\Bbb Q}$.
Randy McCarthy*, University of Illinois at UrbanaChampaign
(92719340)

3:30 p.m.
Integral homology of $PGL_2$ over elliptic curves
Kevin P. Knudson*, Northwestern University
(92719162)

4:00 p.m.
On Torsion in the Homology of GLZ.
Prashanth S Adhikari*, University of Washington
(92719312)

Saturday October 25, 1997, 2:30 p.m.6:20 p.m.
Special Session on Low Dimensional Dynamics, IV
Room E180, Engineering and Mathematical Sciences Building Organizers: Karen M. Brucks, University of WisconsinMilwaukee kmbrucks@csd.uwm.edu
Beverly E. J. Diamond, University of Charleston bdiamond@nsf.gov

2:30 p.m.
More on topological horseshoes: dynamical system topology preserved in the presence of noise
Judy A. Kennedy,*, University of Delaware
(92758161)

3:00 p.m.
Entropy and Nonlinearity
Charles P. Tresser,*, IBM
(92758122)

3:30 p.m.
Entropy of Annulus Homeomorphisms
Marcy Barge,*, Montana State University
Thor Matison,, MSU
(92758226)

4:00 p.m.
The Conley index of a fixed point of a surface homeomorphism
John Franks*, Northwestern University
(92758239)

4:30 p.m.
Invariant sets and their shape
Krystyna M Kuperberg*, Auburn University
(92758165)

5:00 p.m.
A computer implementation of the BestvinaHandel algorithm
Ringland John*, SUNY Buffalo
Menasco William, SUNY Buffalo
(92754198)

5:30 p.m.
Constructing Markov Partitions for PsuedoAnosov Homeomorphisms
Elyn Rykken*, Indiana University Northwest
(92758251)

6:00 p.m.
Partitions of Markov type in the absence of hyperbolicity
Marian Gidea*, University of Bucharest, Romania
(92758248)

Saturday October 25, 1997, 2:30 p.m.4:20 p.m.
Special Session on Number Theory and Cryptography, II
Room E228, Engineering and Mathematical Sciences Building Organizers: Eric Bach, University of WisconsinMadison bach@cs.wisc.edu
Rene Peralta, University of WisconsinMilwaukee peralta@blatz.cs.uwm.edu

2:30 p.m.
Analysis of de Rooij's algorithm for the greatest common divisor of $n$ numbers.
Jeffrey O. Shallit*, University of Waterloo
(92711350)

3:00 p.m.
Trading Time for Space in Prime Number Sieves
Justin Hockemeyer, Butler University
Jonathan Paul Sorenson*, Butler University
(9276824)

3:30 p.m.
Factoring Integers with the Quadratic Sieve
Samuel S Wagstaff, Jr.*, Purdue University
(92711250)

4:00 p.m.
Visual Cryptography Schemes.
Hao Zheng*, Texas A&M University
(92794362)

Saturday October 25, 1997, 2:30 p.m.6:00 p.m.
Special Session on Concentration Phenomena in Differential Equations, IV
Room W130, Engineering and Mathematical Sciences Building Organizers: Lia Bronsard, McMaster University bronsard@icarus.math.mcmaster.ca
WeiMing Ni, University of Minnesota

2:30 p.m.
Bifurcation from the normal state within the GinzburgLandau model for superconductivity
Andrew Bernoff, Northwestern University
Peter Sternberg*, Indiana University
(9273572)

3:00 p.m.
Locally Concentrated Solutions Representing Multiparticle Systems in the Electroweak Theory
Yisong Yang*,
(9273567)

3:30 p.m.
Concentration singularity analysis in Yamabe type problems on manifolds with boundary
ZhengChao Han*,
YanYan Li,
(92735137)

4:00 p.m.
Break

4:30 p.m.
Spinodal decomposition for the CahnHilliard equation in higher dimensions
Stanislaus MaierPaape, Universit\"at Augsburg
Thomas Wanner*, Universit\"at Augsburg
(92735127)

5:00 p.m.
Stationary Solutions of ChanHilliard Equation
Juncheng Wei*, Chinese University of Hong Kong
(9273528)

5:30 p.m.
Bubbling, Identity and Quantization
FangHua Lin*,
changyou wang,
(92735224)

Saturday October 25, 1997, 2:30 p.m.5:50 p.m.
Special Session on Harmonic Analysis and Its Applications, IV
Room W119, Engineering and Mathematical Sciences Building Organizers: LungKee Chen, Oregon State University
Dashan Fan, University of WisconsinMilwaukee fan@csd.uwm.edu
YiBiao Pan, University of Pittsburgh

2:30 p.m.
Discussion

3:00 p.m.
Radon transforms and finite type conditions
Andreas Seeger*, University of WisconsinMadison
(9274218)

3:30 p.m.
Reconstructing unimodular functions from their projections
Richard Rochberg*,
(92746180)

4:00 p.m.
Capacity and strong type estimates in Besov spaces.
Zhijian Wu*, University of Alabama
(92731346)

4:30 p.m.
$H^p$ Inequalities of Sobolev Type.
YongKum Cho*, ChungAng University
(92742359)

5:00 p.m.
Boundedness of pseudodifferential operators on homogeneous Lipschitz spaces
Loukas Grafakos*, Associate Professor
(9274282)

5:30 p.m.
Open and closed subgroups of totally disconnected locally compact topological groups.
Edwin P Herman*, University of St. Thomas
(92722360)

Saturday October 25, 1997, 2:30 p.m.5:20 p.m.
Special Session on Operator Theory and Function Spaces, IV
Room E170, Engineering and Mathematical Sciences Building Organizers: \v Zeljko \v Cu\v ckovi\'c, University of Toledo zcuckovi@math.utoledo.edu

2:30 p.m.
Embedding theorems and kernel functions.
Daniel H Luecking*, University of Arkansas
(92730304)

3:00 p.m.
Compactness of multipliers between Bergman spaces
Stephen M. Buckley, Maynooth College
M. S. Ramanujan, University of Michigan
Dragan Vukoti\'c*, Universidad Aut\'onoma de Madrid
(9273069)

3:30 p.m.
Multipliers between Dirichlet spaces
Zhijian Wu*, University of Alabama
Liming Yang, University of Hawaii
(92747262)

4:00 p.m.
Compactness of sums of Hankel products on weighted Bergman spaces
Karel M. Stroethoff*, University of Montana
(92747258)

4:30 p.m.
Moments, Kernel Functions and Composition Operators in Weighted Bergman Spaces
Thomas L. Kriete, III*, University of Virginia
(92747287)

5:00 p.m.
Singular integral operators on nonhomogeneous spaces.
Serguei Treil*, Michigan State University
(92747328)

Saturday October 25, 1997, 2:30 p.m.5:50 p.m.
Special Session on Geometric Topology and Geometric Group Theory, IV
Room E159, Engineering and Mathematical Sciences Building Organizers: Fredric Davis Ancel, University of WisconsinMilwaukee ancel@csd.uwm.edu
Craig R. Guilbault, University of WisconsinMilwaukee craigg@csd.uwm.edu

2:30 p.m.
Quasiisometric Rigidity and the Geometry of $PSL_2(\bf{Z}[\frac{1}{p}])$
Jennifer Taback*,
(92751297)

3:00 p.m.
Mapping class groups and Lie groups.
Benson Farb*, University of Chicago
(92720371)

3:30 p.m.
$p$Adic actions on boundaries of Coxeter groups
Alexander N Dranishnikov*, University of Florida
(9272062)

4:00 p.m.
Computing Angles Inside Free Groups
Zeph Grunschlag*, U.C. Berkeley
(92720156)

4:30 p.m.
The action of an isometry on the boundary of a CAT(0) space
Kim E. Ruane*, Vanderbilt University
(92720133)

5:00 p.m.
Nonlocally connected boundaries of Artin groups, Coxeter groups and parabolic extensions of $F_2$ by $\Bbb Z$.
Michael L. Mihalik*, Vanderbilt University
(92720163)

5:30 p.m.
Strong general position and hiding a set behind a Cantor set.
Troy L. Goodsell, Pittsburg State University
David G. Wright*, Brigham Young University
(92757307)

Saturday October 25, 1997, 2:30 p.m.4:20 p.m.
Special Session on Rings and Modules, IV
Room W110, Engineering and Mathematical Sciences Building Organizers: Karl Andrew Kosler, University of Wisconsin CentersWaukesha kkosler@uwcmail.uwc.edu
Shubhangi S. Stalder, University of Wisconsin CentersWaukesha sstalder@uwc.edu

2:30 p.m.
Second Layer Condition in Extension Rings
Paul C Kim*,
Karl A Kosler,
(92716183)

3:00 p.m.
Relative FBN rings and local bijective Gabriel correspondence
G\"unter R Krause*, University of Manitoba
(92716152)

3:30 p.m.
Some results on Galois Azumaya extensions.
Ricardo Alfaro*,
(92716227)

4:00 p.m.
Semicentral idempotents and triangular decompositions
Gary F. Birkenmeier*, University of Southwestern Louisiana
(9271610)

Saturday October 25, 1997, 2:30 p.m.5:20 p.m.
Special Session on Enveloping Algebras and Quantum Groups, IV
Room E160, Engineering and Mathematical Sciences Building Organizers: Ian M. Musson, University of WisconsinMilwaukee musson@csd.uwm.edu
Yi Ming Zou, University of WisconsinMilwaukee ymzou@csd.uwm.edu

2:30 p.m.
Remarks on qoscillators and a class of generalized Hopftype Boson Algebras
Anna Maria M Paolucci*,
Ioannis Tsohantjis,
Peter D. Jarvis,
(92781283)

3:00 p.m.
Forms of Coalgebras and Hopf Algebras.
Darren B. Parker*, University of Wisconsin, Madison, WI
(92716363)

3:30 p.m.
A global formula for the quantum Weyl group .
Arun Ram*, Princeton University
(92717339)

4:00 p.m.
The Serre theorem for the affine Lie superalgebras and their quantum groups
Hiroyuki Yamane*,
(92716157)

4:30 p.m.
Linear modules over enveloping algebras
James J. Zhang*, University of Washington
(92716254)

5:00 p.m.
Crystal bases for $U_{q}(osp(1,2r))$.
Ian M Musson, U of Wisconsin
Yi Ming Zou*, Universtiy of Wisconsin
(92722345)

Saturday October 25, 1997, 2:30 p.m.5:00 p.m.
Special Session on Eigenvalue Problems for Differential Equations, IV
Room K129, Engineering and Mathematical Sciences Building Organizers: Hans W. Volkmer, University of WisconsinMilwaukee volkmer@csd4.milw.wisc.edu
Paul A. Binding, University of Calgary binding@acs.ucalgary.ca

2:30 p.m.
Dependence of eigenvalues of SturmLiouville problems on the problem
Qingkai Kong,
Hongyou Wu,
Anton Zettl*,
(9273491)

3:10 p.m.
Eigenvalue comparisons and Jumps
Qingkai Kong*,
Hongyou Wu,
Anton Zettl,
(9273492)

3:50 p.m.
Eigenvalue Tori and Bottles
Qingkai Kong,
Hongyou Wu*,
Anton Zettl,
(9273490)

4:30 p.m.
Discontinuous dependence of the nth SturmLiouville eigenvalue
W. Norrie Everitt*, University of Birmingham
(9273470)

Saturday October 25, 1997, 2:30 p.m.5:20 p.m.
Special Session on Symplectic Topology and Quantum Cohomology, IV
Room E204, Engineering and Mathematical Sciences Building Organizers: YongGeun Oh, University of Wisconsin oh@math.wisc.edu
Yongbin Ruan, University of Utah ruan@math.wisc.edu

2:30 p.m.
Symplectic Packings in Cotangent Bundles of Tori
F. Miller Maley,
Jean B. Mastrangeli,
Lisa M. Traynor*,
(92758140)

3:00 p.m.
Symplectic aspects of ampleness.
Paul Biran*,
(92758206)

3:30 p.m.
Some results in SeibergWitten theory and symplectic geometry
TianJun Li*, Yale University
(92758150)

4:00 p.m.
Break

4:30 p.m.
Some results in Seiberg Witten theory and symplectic geometry
AiKO Liu*, Department of math.,MIT
(92758148)

5:00 p.m.
Floer homology of open subsets and a refinement of Arnold's conjecture.
YongGeun Oh*, University of WisconsinMadison
Rajesh Kasturirangan, University of WisconsinMadison
(92758116)

Saturday October 25, 1997, 2:30 p.m.4:50 p.m.
Special Session on Analysis with Wavelets, IV
Room W120, Engineering and Mathematical Sciences Building Organizers: Gilbert G. Walter, University of WisconsinMilwaukee ggw@csd.uwm.edu
Ahmed I. Zayed, University of Central Florida zayed@pegasus.cc.ucf.edu

2:30 p.m.
Wavelets, decreasing rearrangements, and feature detection.
Mladen Victor Wickerhauser*, Washington University
(92735326)

3:00 p.m.
New prefiltering for multiwavelet transforms.
XiangGen Xia*, University of Delaware
(92742313)

3:30 p.m.
On the Convergence and Summability of a Class of Wavelet Expansions.
Ahmed I. Zayed*, University of Central Florida
(92742327)

4:00 p.m.
Waveletbased Multiresolution Stochastic Image Models.
Jun Zhang*, University of WisconsinMilwaukee
D. Wang, University of WisconsinMilwaukee
Q. N. Tran, University of WisconsinMilwaukee
(92742368)

4:30 p.m.
A quadrature formula based on sampling in wavelet subspaces
Xiaoping Shen*,
Gilbert G Walter,
(92742166)

Saturday October 25, 1997, 2:30 p.m.6:20 p.m.
Special Session on Differential Geometry, IV
Room E220, Engineering and Mathematical Sciences Building Organizers: Hongyou Wu, Northern Illinois University wu@math.niu.edu

2:30 p.m.
The HermitianEinstein equation on K\"ahlerian fiber bundles and the coupled vortex equations.
James F. Glazebrook*, Eastern Illinois University and University of Illinois
Steven B. Bradlow, University of Illinois
Franz W. Kamber, University of Illinois
(92753130)

3:10 p.m.
Symplectic Connections and Exotic Holonomy
QuoShin Chi*, Washington University in St. Louis
(92753139)

3:50 p.m.
The degree of superminimal surfaces in spheres.
Luis Fern\'andez*, Washington University
(92753216)

4:30 p.m.
A Sharp Isoperimetric Inequality for PLmanifolds of Nonpositive Curvature
Jianguo Cao*, University of Notre Dame
(92758200)

5:10 p.m.
New Isospectral Deformations of Closed Riemannian Manifolds.
Carolyn S Gordon, Dartmouth College
Ruth Gornet*, Texas Tech University
Dorothee Schueth, Mathematisches Institut der Univ. Bonn
David L Webb, Dartmouth College
Ed Wilson, Washington University
(92758330)

5:50 p.m.
Helices and Hasimoto Surfaces.
Thomas A. Ivey*, Ball State University
(92753331)

Saturday October 25, 1997, 2:30 p.m.4:50 p.m.
Special Session on Semigroups and Their Applications, IV
Room E230, Engineering and Mathematical Sciences Building Organizers: Karl E. Byleen, Marquette University karlb@marque.mscs.mu.edu
Peter R. Jones, Marquette University jones@mscs.mu.edu

2:30 p.m.
Commutative semigroup cohomology
P. A. Grillet*, Tulane University
(9272038)

3:00 p.m.
Congruences of $S_n$normal semigroups
Inessa Levi*, University of Louisville
(92720218)

3:30 p.m.
Semigroups and Social Networks.
George R Barnes*, University of Louisville
Patrica B Cerrito, University of Louisville
Inessa Levi, University of Louisville
(92720379)

4:00 p.m.
Identities of finite semigroups.
Olga Sapir*, University of Nebraska
(92720378)

4:30 p.m.
Dehn functions of groups.
Mark V Sapir*, Vanderbilt University
(92720377)

Saturday October 25, 1997, 2:30 p.m.5:20 p.m.
Special Session on Applications of Model Theory to Analysis and Topology, IV
Room E129, Engineering and Mathematical Sciences Building Organizers: Paul J. Bankston, Marquette University paulb@marque.mscs.mu.edu
H. Jerome Keisler, University of Wisconsin

2:30 p.m.
ModelTheoretic Methods in Probability Theory.
H. Jerome Keisler*, University of Wisconsin
(92703375)

3:00 p.m.
An Omitting Types Theorem for infinitary formulas in normed structures
Carlos E Ortiz*, Beaver College
(92703203)

3:30 p.m.
OMinimal Structures of The Form \({\cal M}=(M,<,f)_{f\in\cal{F}}\)
ChienNing Yeh*, University of Wisconsin, Madison, WI 53706.
(92703247)

4:00 p.m.
LogarithmicExponential Series
David E Marker*, University of Illinois at Chicago
(92703223)

4:30 p.m.
Sumset Phenomenon.
Renling Jin*, College of Charleston
(92703348)

5:00 p.m.
Discussion

Saturday October 25, 1997, 2:30 p.m.6:20 p.m.
Special Session on Mathematics in Industry, II
Room E140, Engineering and Mathematical Sciences Building Organizers: Michael Benedikt, Lucent Technologies benedikt@research.belllabs.com

2:30 p.m.
Mathematics and Operations Research in the Airline Industry.
Karl M. Peters*, United Airlines
(92790374)

3:00 p.m.
Industrial Mathematics at Marquette.
George F. Corliss*, Marquette University
(92798338)

3:30 p.m.
My Experiences as an Industrial Research Assistant: How to Change Clothes While Driving.
Brian M. Murphy*, Marquette University
(92798358)

4:00 p.m.
Dynamic Modeling Wet Paper Formation.
William W Schultz*, University of Michigan
EJune Chen, University of Michigan
Noel C Perkins, University of Michigan
(92776370)

4:30 p.m.
NSF Grant Opportunities for Academic Liaison with Industry (GOALI).
Lloyd E Douglas*, National Science Foundation
(92700311)

5:00 p.m.
Mathematics in the Setting of Economics Consulting.
Brendan P Burke*, Lexecon Inc.
(92790372)

5:30 p.m.
Educational and Research Programs in Industrial Mathematics.
Fadil Santosa*, Minnesota Center for Industrial Mathematics
(92798351)

6:00 p.m.
The decline of unfettered research.
Andrew M. Odlyzko*, AT&T Labs  Research
(92700366)
Inquiries: meet@ams.org

