AMS Sectional Meeting Full Program
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1998 Spring Eastern Section Meeting
Philadelphia, PA, April 46, 1998
Meeting #933
Associate secretaries: Lesley M Sibner, AMS lsibner@duke.poly.edu
Saturday April 4, 1998

Saturday April 4, 1998, 8:00 a.m.4:00 p.m.
Meeting Registration
Ground Level, 1616 Walnut Street, TUCC

Saturday April 4, 1998, 8:00 a.m.4:00 p.m.
Book Sale
Ground Level, 1616 Walnut Street, TUCC

Saturday April 4, 1998, 8:25 a.m.10:50 a.m.
Special Session on Topology of Manifolds and Varieties, I
Room 305, TUCC Organizers: Sylvain E. Cappell, New York UniversityCourant Institute
Georgia Triantafillou, Temple University georgia@euclid.math.temple.edu

8:25 a.m.
Homology Manifold Bordism.
Heather M Johnston*, Rutgers University
Andrew A Ranicki, University of Edinburgh
(93357230)

9:05 a.m.
Analytic torsion for bundles with the covering space of a compact manifold as typical fiber.
Mel Rothenberg*, University of Chicago
(93357251)

9:45 a.m.
A Bivariant RiemannRoch Theorem for Geometric Topology.
Bruce Williams*, U. of Notre Dame
(93357247)

10:20 a.m.
Holomorphic Ktheory, Algebraic cocycles and Loop groups.
Ralph L. Cohen*, Stanford University
(93355206)

Saturday April 4, 1998, 8:30 a.m.10:50 a.m.
Special Session on Modular Identities and QSeries in Number Theory, I
Room 8B, TUCC Organizers: Marvin I. Knopp, Temple University
Boris Datskovsky, Temple University bdats@euclid.math.temple.edu

8:30 a.m.
Distribution of parity of the partition function on arithmetic progressions.
Scott D. Ahlgren*, Penn State University
(9331173)

9:00 a.m.
Septic theta function identities in Ramanujan's Lost Notebook .
Seung H Son*, University of Illinois at UrbanaChampaign
(9331142)

9:30 a.m.
Modular equations of degree 5 found in Ramanujan's Lost Notebook .
SoonYi Kang*, University of Illinois at UrbanaChampaign
(9331146)

10:00 a.m.
Incomplete Elliptic Integrals in Ramanujan's Lost Notebook.
Bruce C. Berndt*, University of Illinois at UrbanaChampaign
(9331181)

10:30 a.m.
Rational Landen transformations: the sixth degree case.
Victor H. Moll*, Tulane University
George Boros, Tulane University
(93333250)

Saturday April 4, 1998, 8:30 a.m.10:50 a.m.
Special Session on Mathematical Pedagogy, I
Room 5B, TUCC Organizers: Orin N. Chein, Temple University orin@euclid.math.temple.edu

8:30 a.m.
Calculus Using Maple and Scientific Notebook.
Philip B. Yasskin*, Texas A&M University
(93398149)

9:00 a.m.
Connecting Nursing Research to Nursing Statistics with a WebBased Dataset Archive.
Thomas H. Short*, Villanova University
Marilyn S. Fetter, Villanova University
(93362196)

9:30 a.m.
Using Maple to Create Calculus Laboratory Activities.
Shari Prevost*, Gainesville College
(93398141)

10:00 a.m.
The "New" Differential Equations and the "Old" Numerical Analysis.
James P Fink*, Gettysburg College
(9339812)

10:30 a.m.
Collaborative learning: What works, what doesn't, and why.
Raymond F. Coughlin*, Temple University
(93398197)

Saturday April 4, 1998, 8:30 a.m.10:50 a.m.
Special Session on Differential Geometric Methods in Hydrodynamics, I
Room 2B, TUCC Organizers: Gerard K. Misiolek, University of Notre Dame and California Institute of Technology gmisiole@artin.helios.nd.edu

8:30 a.m.
Geometric and Topological Aspects of Vortex Knot Dynamics.
Renzo L Ricca*, Department of Mathematics, University College London, UK
(9335897)

9:00 a.m.
Embedding Hamiltonian Systems into Geodesic Systems on Lie Groups.
Toshihiko Ono*, Yukawa Institute for Theoretical Physics
(93370228)

9:30 a.m.
Lagrangian formalism on complex manifolds: Leray residue vs. Stokes formula.
Boris A. Khesin*, University of Toronto/IAS
(93358191)

10:00 a.m.
Jacobi fields in hydrodynamics and some integrable systems.
Tsutomu Kambe*, Department of Physics, University of Tokyo
(93376140)

10:30 a.m.
Algebraicgeometric $n$orthogonal curvilinear coordinate systems.
Igor Krichever*, Department of Mathematics, Columbia University
(93314102)

Saturday April 4, 1998, 8:50 a.m.10:50 a.m.
Special Session on PDEs in Several Complex Variables, I
Room 306, TUCC Organizers: Shiferaw Berhanu, Temple University berhanu@euclid.math.temple.edu
Gerardo Mendoza, Temple University gmendoza@math.temple.edu

8:50 a.m.
Analytic regularity of the Bergman kernel.
Gabor Francsics*, Columbia University
Nicholas Hanges, Lehman College/CUNY
(93335186)

9:20 a.m.
Boundary behavior of the Bergman kernel .
Gabor Francsics, Columbia University
Nicholas Hanges*, Lehman College/CUNY
(93332187)

9:55 a.m.
Using the Szego" Projection to solve classical boundary value problems on nonsmooth domains in the plane.
Loredana Lanzani*, The University of Arkansas at Fayetteville
(9333153)

10:30 a.m.
Discussion

10:30 a.m.
A trace theorem for function spaces defined by vector fields.
Shif Berhanu, Temple University
Isaac Pesenson*, Temple University
(93300161)

Saturday April 4, 1998, 9:00 a.m.10:50 a.m.
Special Session on Radon Transforms and Tomography, I
Room 302, TUCC Organizers: Eric L. Grinberg, Temple University grinberg@euclid.math.temple.edu
Eric Todd Quinto, Tufts University etq@math.tufts.edu

9:00 a.m.
Two Radius Support Theorems for the Sphere Transform.
Yiying Zhou*, Tufts University
(9334475)

9:30 a.m.
Sampling and the Three Squares Theorem.
David F Walnut*, George Mason University
(93344157)

10:00 a.m.
Antiselfdual sympnectic forms and integral geometry.
Juan Carlos Alvarez Paiva*, Universite Catholique de Louvain
Izrail M Gelfand, Rutgers University
(93344153)

10:30 a.m.
$SL(2,\Bbb R)$ and complex horosphers.
Simon Gindikin*, Rutgers University
(93344212)

Saturday April 4, 1998, 9:00 a.m.10:50 a.m.
Special Session on The History of American Mathematics, I
Room 10B, TUCC Organizers: David E. Zitarelli, Temple University davidz@euclid.math.temple.edu
Karen H. Parshall, University of Virginia khp3k@virginia.edu

9:00 a.m.
The Declaration of American Independence and other mathematical texts of the eighteenth century.
John G Fauvel*, The Open University, England
(9330191)

9:30 a.m.
From so obscure a beginning: The Analyst of Joel E. Hendricks.
Joe Albree*, Auburn U. at Montgomery
(93301101)

10:00 a.m.
W. W. Johnson and Newton's Calculus.
George M. Rosenstein*, Franklin & Marshall C.
(93301104)

10:30 a.m.
Mathematics Curriculum at West Point during the Nineteenth Century: Courses, Textbooks, Content, Faculty, Students, and Influences.
David C Arney*, United States Military Academy
(9330132)

Saturday April 4, 1998, 9:00 a.m.10:50 a.m.
Special Session on Rings and Representations, I
Room 9B, TUCC Organizers: Maria E. Lorenz, Ursinus College
Martin Lorenz, Temple University lorenz@euclid.math.temple.edu

9:00 a.m.
On the DonaldFlanigan Conjecture.
Murray Gerstenhaber*, University of Pennsylvania
(93316233)

9:30 a.m.
Aspects of the DonaldFlanigan Conjecture.
Tony Giaquinto*, Texas A&M University
(93316229)

10:00 a.m.
Branching Rules for Finite Unitary Groups.
Thomas R Hagedorn*, The College of New Jersey
(9332018)

10:30 a.m.
A Practical Algorithm for Finding Matrix Representations for Polycyclic Groups.
Eddie H. Lo, National Security Agency
Gretchen Ostheimer*, Tufts University
(93320174)

Saturday April 4, 1998, 9:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis and Its Applications to PDE's, I
Room 303, TUCC Organizers: Cristian E. Gutierrez, Temple University gutier@math.temple.edu
Guozhen Lu, Wright State University gzlu@math.wright.edu

9:00 a.m.
Two weight norm estimates for potential and maximal operators on spaces of homogeneous type.
Carlos P\'erez, Universidad Aut\'onoma de Madrid
Richard L. Wheeden*, Rutgers University
(9333547)

9:30 a.m.
Lebesgue space estimates for operators associated with the Neumann problem for the wave equation on an exterior domain.
Michael Beals*, Rutgers University
(93335172)

10:00 a.m.
Stable solutions of semilinear elliptic Equations in Convex Domains.
Sagun Chanillo*, Rutgers Univ., New Brunswick NJ,08903.
(9333537)

10:30 a.m.
Selfimproving properties of Poincar\'e inequalities in metric spaces.
Bruno Franchi*, University of Bologna
(93346118)

Saturday April 4, 1998, 9:00 a.m.10:50 a.m.
Special Session on Heat Kernel Analysis on Lie Groups, I
Room 3B, TUCC Organizers: Leonard Gross, Cornell University gross@math.cornell.edu
Omar Hijab, Temple University hijab@euclid.math.temple.edu

9:00 a.m.
Analysis and geometry on the pseudogroup of univalent functions.
Paul Malliavin*, Jussieu
(93358116)

9:25 a.m.
Brownian motion on large unitary groups.
Philippe Biane*, Ecole Normal Superieure
(93358115)

9:45 a.m.
Break

10:05 a.m.
Characterizing YangMills fields by stochastic parallel transport.
Robert O Bauer*, Institute for Advanced Study
(9336025)

10:30 a.m.
Short Time Behavior of Logarithmic Derivatives of the Heat Kernel
James Turetsky*, Harvard University
(93358239)

Saturday April 4, 1998, 9:00 a.m.10:50 a.m.
Special Session on Nonlinear Partial Differential Equations, I
Room 6B, TUCC Organizers: Yanyan Li, Rutgers University yyli@math.rutgers.edu

9:00 a.m.
Boundary value problems at infinity for surfaces of constant mean curvature in Hyperbolic space.
Joel Spruck*, Johns Hopkins University
(93335105)

9:30 a.m.
Function theory and minimal surfaces.
William P. Minicozzi, II*, Johns Hopkins University
Tobias H. Colding, NYU
(93353122)

10:00 a.m.
Extremal Hermitian metrics in Riemann surface and generalization of the uniformization theorem to surface with boundary.
xiuxiong Chen*, Stanford University
(93358190)

10:30 a.m.
Harmonic Maps on Complete Manifolds.
Wenxiong Chen*, Southwest Missouri State University
Congming Li, University of Colorado
(93335110)

Saturday April 4, 1998, 9:30 a.m.10:50 a.m.
Special Session on Sparse Elimination Methods in Polynomial System Solving, I
Room 7B, TUCC Organizers: Ioannis Z. Emiris, INRIA, SophiaAntipolis, France emiris@sophia.inria.fr
J. Maurice Rojas, Massachusetts Institute of Technology rojas@math.mit.edu

9:30 a.m.
On Multivariate Descartes Rule.
TienYien Li*, Michigan State University
Xiaoshen Wang, University of Central Arkansas
(93365124)

10:00 a.m.
Integral Points on Sparse Algebraic Curves.
J. Maurice Rojas*, City University of Hong Kong
(93314185)

10:30 a.m.
The Expected Number of Roots of a Multihomogeneous Systems of Polynomial Equations.
Andrew M McLennan*, University of Minnesota
(9331423)

Saturday April 4, 1998, 11:00 a.m.11:50 a.m.
Invited Address
Manifolds with Ricci curvature bounds.
Room 5B, TUCC
Tobias H. Colding*, Courant Institute  New York University

Saturday April 4, 1998, 1:30 p.m.2:20 p.m.
Invited Address
Why foundations are important.
Room 5B, TUCC
Martin Davis*, University of California, Berkeley

Saturday April 4, 1998, 2:30 p.m.5:20 p.m.
Special Session on Modular Identities and QSeries in Number Theory, II
Room 8B, TUCC Organizers: Marvin I. Knopp, Temple University
Boris Datskovsky, Temple University bdats@euclid.math.temple.edu

2:30 p.m.
Universal deformation rings of representations of finite groups.
Frauke M. Bleher, Univ. of Penn.
Ted C. Chinburg*, Univ. of Penn.
(93311120)

3:00 p.m.
The Hyperbolic Geometry of the CrispMoran Conjecture.
Thomas A. Schmidt, Oregon State University
Mark Sheingorn*, CUNY  Baruch College and Graduate Center
(9331154)

3:30 p.m.
Divisibility of class numbers and orders of TateShafarevich groups.
Ken Ono*, Penn State University
(9331140)

4:00 p.m.
Character sums and automorphic forms.
ChingLi Chai, University of Pennsylvania
WenChing Winnie Li*, Pennsylvania State University
(9331178)

4:30 p.m.
Nonanalytic Automorphic Integrals.
Paul C Pasles*, Saint Joseph's University
(93311139)

5:00 p.m.
LogPloynomial Period Functions for Hecke Groups.
Abdulkadir Hassen*, Rowan University
(9331160)

Saturday April 4, 1998, 2:30 p.m.4:50 p.m.
Special Session on Radon Transforms and Tomography, II
Room 302, TUCC Organizers: Eric L. Grinberg, Temple University grinberg@euclid.math.temple.edu
Eric Todd Quinto, Tufts University etq@math.tufts.edu

2:30 p.m.
Radon transform on direct limit groups.
Elinor Velasquez*, U.C. Berkeley
(93344181)

3:00 p.m.
Morera Theorems on $C^n$ and manifolds.
Eric L. Grinberg, Temple University
Eric Todd Quinto*, Tufts University
(9334426)

3:30 p.m.
$L^p$ estimates for restricted Xray transforms and integrals over curves in $R^4$.
Allan Greenleaf*, Department of Mathematics, University of Rochester, Rochester, NY 14627
Andreas Seeger, Department of Mathematics, University of Wisconsin, Madison, WI 53706
(9334439)

4:00 p.m.
Uniqueness and nonuniqueness for overdetermined Xray transforms.
Jan Boman*, Stockholm University
(93344129)

4:30 p.m.
New range theorems for the Radon transform and its dual.
Alexander Katsevich*, University of Central Florida
(9334457)

Saturday April 4, 1998, 2:30 p.m.4:20 p.m.
Special Session on The History of American Mathematics, II
Room 10B, TUCC Organizers: David E. Zitarelli, Temple University davidz@euclid.math.temple.edu
Karen H. Parshall, University of Virginia khp3k@virginia.edu

2:30 p.m.
"Moulding the Mathematical Education of 55 Million" Americans: Sylvester at Hopkins (18761883).
Karen V.H. Parshall*, University of Virginia
(9330183)

3:00 p.m.
C. S. Peirce as a Mathematician.
Albert C. Lewis*, Indiana University
(93301243)

3:30 p.m.
The Remarkable Charlotte Scott.
James J Tattersall*, Providence College
(9330114)

4:00 p.m.
The Early History of the Cornell University Mathematics Department.
Gary G. Cochell*, CulverStockton College
(9330135)

Saturday April 4, 1998, 2:30 p.m.5:20 p.m.
Special Session on Mathematical Pedagogy, II
Room 5B, TUCC Organizers: Orin N. Chein, Temple University orin@euclid.math.temple.edu

2:30 p.m.
From Algorithm to Exploration.
Peter G. Jessup*, Ursinus College
(93398133)

3:00 p.m.
The Calculus Consortium based at Harvard turns 10: Reflections on lessons learned.
Jeff TecoskyFeldman*, Haverford College
(93398137)

3:30 p.m.
Using history to teach undergraduate real analysis.
David M. Bressoud*, Macalester College
(9332809)

4:00 p.m.
Involving Prospective Teachers in the Design of Maple Laboratory Assignments.
Louise M Berard*, Wilkes University
(9339820)

4:30 p.m.
Beyond Testing  ways to assess student learning.
Alice A Deanin*, Villanova University
(93398193)

5:00 p.m.
Does cognitive psychology support standards based reform?
Malcolm J Sherman*, State University of New York at Albany
(93397225)

Saturday April 4, 1998, 2:30 p.m.4:50 p.m.
Special Session on Differential Geometric Methods in Hydrodynamics, II
Room 2B, TUCC Organizers: Gerard K. Misiolek, University of Notre Dame and California Institute of Technology gmisiole@artin.helios.nd.edu

2:30 p.m.
Instablity of geodesics on the group of areapreserving diffeomorphisms (motions of fluid) of 2sphere.
Kyo Yoshida*, Department of Physics, Graduate School of Science, University of Tokyo
(93376150)

3:00 p.m.
Hamiltonian Hydrodynamic Type Systems and Riemannian Geometry.
Sergey P. Novikov*, University of Maryland at College Park and Landau Institute for Theoretical Physics, Moscow
(93358119)

3:30 p.m.
Flows on Diffeomorphisms of the Circle, Grassmannians and the Geometry of the Periodic KdV Equation.
Maria E Schonbek, Department of Mathematics, University of California at Santa Cruz
Andrey N Todorov*, Department of Mathematics, University of California at Santa Cruz
Jorge P Zubelli, IMPA, Brazil
(9335893)

4:00 p.m.
Stability and Instability Criteria for Magnetohydrodynamics.
Susan Friedlander*, Mathematics Department, University of Illinois, Chicago
Misha Vishik, Mathematics Department, University of Texas, Austin
(93335100)

4:30 p.m.
Solutions to the Euler equations with unbounded vorticity.
Misha Vishik*, Department of Mathematics, University of Texas at Austin
(93335103)

Saturday April 4, 1998, 2:30 p.m.4:50 p.m.
Special Session on Nonlinear Partial Differential Equations, II
Room 6B, TUCC Organizers: Yanyan Li, Rutgers University yyli@math.rutgers.edu

2:30 p.m.
Prescribing scalar curvature on nspheres.
Congming Li*, Univ. of Colorado
(93335144)

3:00 p.m.
Asymptotic behavior for positive solutions to $\Delta_gu = u^q + Su$ with prescribed singularities.
David L Finn*, Merrimack College
(9333510)

3:30 p.m.
Double vortexcondensates in the ChernSimonsHiggs theory.
Gabriella Tarantello*, Universit\'a di Roma "Tor Vergata"
(9333579)

4:00 p.m.
Applications of a minmax principle.
Alfonso Castro*, University of North Texas
(9333562)

4:30 p.m.
Diffusion vs. crossdiffusion: an elliptic approach.
Yuan Lou*, University of Chicago
WeiMing Ni, University of Minnesota
(93335109)

Saturday April 4, 1998, 2:30 p.m.5:20 p.m.
Special Session on Sparse Elimination Methods in Polynomial System Solving, II
Room 7B, TUCC Organizers: Ioannis Z. Emiris, INRIA, SophiaAntipolis, France emiris@sophia.inria.fr
J. Maurice Rojas, Massachusetts Institute of Technology rojas@math.mit.edu

2:30 p.m.
Groebner Bases and Invariants.
Karin Gatermann*, FU Berlin / ZIB
(93368184)

3:00 p.m.
Degrees of Groebner bases of toric ideals.
Serkan Hosten*, George Mason University
(93314182)

3:30 p.m.
Computing the State Polytope of a Toric Ideal.
Rekha Rachel Thomas*, Texas A&M University
Birkett Huber, Texas A&M University
(93314178)

4:00 p.m.
Certificates for Deficient Sparse Polynomial Systems:.
Birkett Huber*, Texas A&M University
Jan Verschelde, Michagan State University
(93314171)

4:30 p.m.
Discussion

Saturday April 4, 1998, 2:30 p.m.4:40 p.m.
Session on Session for Contributed Papers
Room 1B, TUCC

2:30 p.m.
Additive Isometries of Continuoius Functions.
Edward Beckenstein*, Temple University
(9334619)

2:45 p.m.
Krylovsubspace solvers for emission tomograph.
Tuan CaoHuu*, Harvard University and Massachusetts General Hospital
(9331522)

3:00 p.m.
Etaequivalent solutions of nonlinear PDEproblems.
Efim Galperin*, University of Quebec at Montreal
(9333567)

3:15 p.m.
Illuminating Points with Tangent Lines.
Alan L Horwitz*, Penn State University
(93326215)

3:30 p.m.
An apriori estimate establishing regularity for the viscosity solution of an HJB equation with large discount factor.
Clifford A Johnston*, West Chester University
(9333507)

3:45 p.m.
Attenuated Radon Transform and Highfrequency Scattering Theory.
Alexander Panchenko*, University of Delaware
(93344201)

4:00 p.m.
A numerical procedure for estimating model parameters.
Yixum Shi*, Bloomsburg University
(9336570)

4:15 p.m.
A cumulant spectral density for a twovalued random field with summable $\rho^*$mixing coefficients.
Curtis P. Miller*, Southeast Missouri State University
(9336011)

4:30 p.m.
Inequalities and stability for a linear scalar functional differential equation.
Tingxiu Wang*, Oakton Community College
(9333444)

Saturday April 4, 1998, 2:35 p.m.5:05 p.m.
Special Session on Topology of Manifolds and Varieties, II
Room 305, TUCC Organizers: Sylvain E. Cappell, New York UniversityCourant Institute
Georgia Triantafillou, Temple University georgia@euclid.math.temple.edu

2:35 p.m.
Torelli group action on the homology of representation variety.
Ronnie Lee*, Yale University
(93355235)

3:15 p.m.
Analytic compactifications of character varieties.
Georgios Daskalopoulos, Brown University
Stamatis Dostoglou*, University of Missouri
Richard Wentworth, U.C. Irvine
(93353134)

3:55 p.m.
The geography problem for symplectic 4manifolds.
Zoltan Szabo*, Princeton University
(93357203)

4:35 p.m.
Braid groups and Lagrangian spheres.
Paul Seidel*, IAS, Princeton
(93357170)

Saturday April 4, 1998, 2:40 p.m.5:30 p.m.
Special Session on Rings and Representations, II
Room 9B, TUCC Organizers: Maria E. Lorenz, Ursinus College
Martin Lorenz, Temple University lorenz@euclid.math.temple.edu

2:40 p.m.
Grading and Derivations.
Christof Geiss, UNAM
Edward L Green*, Virginia Tech
Eduardo N Marcos, Univ. of Sao Paulo
(93316211)

3:10 p.m.
The homology of string algebras.
Birge HuisgenZimmermann*, University of California
Sverre O. Smal\o, Norwegian University for Science and Technology
(93316213)

3:40 p.m.
GroebnerShirshov bases for relations of a Lie algebra and its enveloping algebra.
Leonid Bokut', Institute of Mathematics, Novosibirsk
Peter Malcolmson*, Wayne State University
(93317232)

4:10 p.m.
Ideals of the Enveloping Algebra $U(sl_3)$.
Stefan Catoiu*, Temple University
(9331650)

4:40 p.m.
Symmetric Pairs for Quantized Enveloping Algebras.
Gail Letzter*, Virginia Tech
(93317152)

5:10 p.m.
Poisson polynomial identities, coadjoint orbits, and Krull dimension.
Daniel R Farkas*, Math Dept, Virginia Tech
(9331663)

Saturday April 4, 1998, 2:40 p.m.4:55 p.m.
Special Session on Heat Kernel Analysis on Lie Groups, II
Room 3B, TUCC Organizers: Leonard Gross, Cornell University gross@math.cornell.edu
Omar Hijab, Temple University hijab@euclid.math.temple.edu

2:40 p.m.
Some variational problems in quantum communication theory.
Eric A Carlen*, Georgia Tech
(93346237)

3:05 p.m.
Heat kernel measures and cohomology.
Edward L Bueler*, Mathematical Sciences Research Institute
(9335888)

3:25 p.m.
Break

3:45 p.m.
Complexifications of symmetric spaces and associated Bargmann transforms.
Bent \O{}rsted*, Odense University
(93358113)

4:10 p.m.
Unitary Representations with Reflection Symmetry.
Gestur Olafsson*, Louisiana State University
(93357114)

4:35 p.m.
Unitary representations of Lie groups with reflection symmetry.
Palle E.T. Jorgensen*, University of Iowa
(93346131)

Saturday April 4, 1998, 2:45 p.m.5:05 p.m.
Special Session on PDEs in Several Complex Variables, II
Room 306, TUCC Organizers: Shiferaw Berhanu, Temple University berhanu@euclid.math.temple.edu
Gerardo Mendoza, Temple University gmendoza@math.temple.edu

2:45 p.m.
Pseudoconvex Mizohata Structures on Compact Manifolds.
Abdelhamid Meziani*, Florida International University
(93332106)

3:20 p.m.
CR circle bundles and Mizohata structures.
Anbo Le*, Ohio State University
(9333258)

4:05 p.m.
Homogeneous CR submanifolds in ${\Bbb C}^n$.
Nancy K. Stanton*, University of Notre Dame
(9333295)

4:40 p.m.
On a linearity problem of CR mappings between spheres of different dimensions.
Xiaojun Huang*, Rutgers University
(93300199)

Saturday April 4, 1998, 2:45 p.m.5:05 p.m.
Special Session on Harmonic Analysis and Its Applications to PDE's, II
Room 303, TUCC Organizers: Cristian E. Gutierrez, Temple University gutier@math.temple.edu
Guozhen Lu, Wright State University gzlu@math.wright.edu

2:45 p.m.
Estimates for Bilinear Cone Operators.
Andrea R. Nahmod*, Institute for Advanced Study
John Gilbert, University of Texas at Austin
(93342189)

3:15 p.m.
$L^p$ boundedness of singular integrals with rough kernels.
Yibiao Pan*, University of Pittsburgh
(93342128)

3:45 p.m.
Oscillatory Integrals with Nonhomogeneous Phase Functions Related to Schr\" odinger Equations.
Lawrence A Kolasa*, Ryerson Polytechnic University
(9334230)

4:15 p.m.
Harnack Inequality for the Linearized Parabolic MongeAmp\`ere Equation.
Qingbo Huang*, Temple University, Philadelphia, PA 19122
(9333572)

4:45 p.m.
Weighted inequalities on John Domains.
SengKee Chua*, National University of Singapore
(93346204)
Sunday April 5, 1998

Sunday April 5, 1998, 8:00 a.m.12:00 p.m.
Meeting Registration
Ground Level, 1616 Walnut Street, TUCC

Sunday April 5, 1998, 8:00 a.m.12:00 p.m.
Book Sale
Ground Level, 1616 Walnut Street, TUCC

Sunday April 5, 1998, 8:20 a.m.10:10 a.m.
Special Session on Sparse Matrix Computations, I
Room 1B, TUCC Organizers: Jesse Barlow, Pennsylvania State University barlow@cse.psu.edu
Daniel B. Szyld, Temple University szyld@math.temple.edu

8:20 a.m.
Low Rank Matrix Approximation Using the Lanczos Bidiagonalization Process with Applications.
Hongyuan Zha*, Penn State Univ.
(9336565)

8:50 a.m.
Performance of Greedy Ordering Heuristics for Sparse Cholesky Factorization.
Esmond G Ng, Oak Ridge National Laboratory
Padma Raghavan*, University of Tennessee
(93368136)

9:20 a.m.
The Effect of Mesh Quality on the Solution of Associated Sparse Linear Systems.
Paul E. Plassmann*, The Pennsylvania State University
(93365198)

9:50 a.m.
Multigrid methods for sparse matrices arising from PDE discretizations.
Jinchao Xu*, Pennsylvania State University
(9336513)

Sunday April 5, 1998, 8:25 a.m.10:50 a.m.
Special Session on Topology of Manifolds and Varieties, III
Room 305, TUCC Organizers: Sylvain E. Cappell, New York UniversityCourant Institute
Georgia Triantafillou, Temple University georgia@euclid.math.temple.edu

8:25 a.m.
The naturality of Kirwan's decomposition.
ChingLi Chai, University of Pennsylvania
Amnon Neeman*, University of Virginia
(9335506)

9:05 a.m.
A holomorphic Casson invariant for CalabiYau threefolds.
Richard P Thomas*, Institute for Advanced Study, Princeton
(93314164)

9:45 a.m.
Parametrized SeibergWitten theory.
TianJun Li*, IAS
Aiko Liu, MIT
(93358179)

10:20 a.m.
The minimal genus problem for a symplectic 4manifold.
Peter S Ozsvath*, IAS
Zoltan Szabo, Princeton University
(93357240)

Sunday April 5, 1998, 8:30 a.m.10:50 a.m.
Special Session on Modular Identities and QSeries in Number Theory, I
Room 8B, TUCC Organizers: Marvin I. Knopp, Temple University
Boris Datskovsky, Temple University bdats@euclid.math.temple.edu

8:30 a.m.
On a partition theorem of G\"ollnitz and quartic transformations.
Krishnaswami Alladi*, University of Florida
(9331124)

9:00 a.m.
WZforms, qseries accelerations, irrationality proofs.
Tewodros Amdeberhan*, DeVry Institute of Technology
Doron Zeilberger, Temple University
(9331143)

9:30 a.m.
Extending Theorems of Gollnitz, A New Family of Partition Identities.
Jose Plinio O Santos*, UNICAMP, CAMPINASBRASIL
Paulo Mondek, UFMSCampo Grande  Brasil
(9331145)

10:00 a.m.
Some $q$expansions of modular forms.
David W Farmer*, Bucknell University
(93311159)

10:30 a.m.
New Algorithms in PublicKey Cryptography.
Daniel B Lieman*, University of Missouri
(93311217)

Sunday April 5, 1998, 8:30 a.m.10:50 a.m.
Special Session on Mathematical Pedagogy, III
Room 404, TUCC Organizers: Orin N. Chein, Temple University orin@euclid.math.temple.edu

8:30 a.m.
How to Grade 80 Mathematical Essays and Survive to Tell the Tale.
Annalisa Crannell*, Franklin & Marshall College
(9339834)

9:00 a.m.
Calculus on the Web (COW).
Dan Reich*, Temple University
Gerardo A Mendoza, Temple University
(9339831)

9:30 a.m.
Cooperative Learning for Mathematics Majors.
Nancy L. Hagelgans*, Ursinus College
(9339856)

10:00 a.m.
Bad Writing Before Good.
Stephen B Maurer*, Swarthmore College
(9339817)

10:30 a.m.
Using the Print Media to Enhance the Learning of Statistical Concepts in a Core Mathematics Course.
Eli Passow*, Temple University
(9339896)

Sunday April 5, 1998, 8:30 a.m.10:50 a.m.
Special Session on Differential Geometric Methods in Hydrodynamics, III
Room 2B, TUCC Organizers: Gerard K. Misiolek, University of Notre Dame and California Institute of Technology gmisiole@artin.helios.nd.edu

8:30 a.m.
Stability of Stationary Flows of an Ideal Incompressible Fluid of Piecewise Constant Density.
Yu. K. Kashaev, Rostov University
Vasiliy I Sedenko*, Department of Fundamental and Applied Mathematics
Victor I Yudovich, Department of Mathematics and Mechanics
(9337699)

9:00 a.m.
On the Riemannian Curvature of an Ideal Continuum Medium with Constraints.
Victor Yudovich*, Department of Mathematics and Mechanics
(9335894)

9:30 a.m.
Motion of Incompressible Inviscid Fluids with Free Boundary and Surface Tension.
David G. Ebin*, State University of New York at Stony Brook
(93335108)

10:00 a.m.
Riemannian geometry of the motion of a thin vortex filament and instability analysis.
Suzuki Katsuhiro*, Department of Applied Physics, Tokyo University of Agriculture and Technology
(93376183)

10:30 a.m.
Topological Euler Equations and Diffeomorphisms Groups.
Rudolf Schmid*, Emory University
(93358205)

Sunday April 5, 1998, 8:50 a.m.10:50 a.m.
Special Session on PDEs in Several Complex Variables, III
Room 306, TUCC Organizers: Shiferaw Berhanu, Temple University berhanu@euclid.math.temple.edu
Gerardo Mendoza, Temple University gmendoza@math.temple.edu

8:50 a.m.
Germs of Blow Downs.
Charles L. Epstein*, U. of Penn.
(93332156)

9:20 a.m.
Resolvents and functions of the Kohn Laplacian on the Heisenberg group.
Daryl Geller*, SUNY at Stony Brook
(93332180)

9:55 a.m.
Compactness of the $\dbar$Neumann problem on convex domains.
Siqi Fu, Texas A&M University
Emil J Straube*, Texas A&M University
(9333229)

10:30 a.m.
On strictly pseudoconvex domains with KahlerEinstein Bergman metrics.
Siqi Fu*, Texas A & M University
Bun Wong, University of Calfornia, Riverside
(9333271)

Sunday April 5, 1998, 9:00 a.m.10:50 a.m.
Special Session on Radon Transforms and Tomography, III
Room 302, TUCC Organizers: Eric L. Grinberg, Temple University grinberg@euclid.math.temple.edu
Eric Todd Quinto, Tufts University etq@math.tufts.edu

9:00 a.m.
Exponential Radon transform and John equation.
Leon Ehrenpreis, Temple University
Peter Kuchment*, Wichita State University
Alex Panchenko, University of Delaware
(93344173)

9:30 a.m.
An inverse problem in elastodynamics.
Lizabeth V Rachele*, Purdue University
(9333585)

10:00 a.m.
Tomography in Electron Microscopy: The State of the ART.
Gabor T Herman*, University of Pennsylvania, Philadelphia, PA
Roberto Marabini, University of Pennsylvania, Philadelphia, PA
Jose M Carazo, Universidad Atonoma de Madrid, Madrid, Spain
(9339259)

10:30 a.m.
Fast Functional Magnetic Resonance Imaging and Wavelets.
Larry Shepp*, Rutgers University
Cun Hui Zhang, Rutgers University
(9339228)

Sunday April 5, 1998, 9:00 a.m.10:50 a.m.
Special Session on The History of American Mathematics, III
Room 10B, TUCC Organizers: David E. Zitarelli, Temple University davidz@euclid.math.temple.edu
Karen H. Parshall, University of Virginia khp3k@virginia.edu

9:00 a.m.
Leonard Dickson and the University of Chicago: The Consolidation and Growth of an Algebraic Research Tradition.
Della D. Fenster*, University of Richmond
(9330190)

9:30 a.m.
The Founding of the MAA.
Florence D Fasanelli*, MAA
(93301160)

10:00 a.m.
E. H. Moore's Failed Attempt to Involve the American Mathematical Society in Pedagogy, 19021915.
David L Roberts*, University of Maryland
(9330161)

10:30 a.m.
Women at Cornell: the pre1940 Ph.D.'s.
Judy Green*, Marymount University, Arlington, VA
Jeanne LaDuke, DePaul University
(93301222)

Sunday April 5, 1998, 9:00 a.m.10:50 a.m.
Special Session on Rings and Representations, III
Room 9B, TUCC Organizers: Maria E. Lorenz, Ursinus College
Martin Lorenz, Temple University lorenz@euclid.math.temple.edu

9:00 a.m.
Associative envelopes of Lie superalgebras satisfying a polynomial identity.
M. Susan Montgomery*, University of Southern California
(9331638)

9:30 a.m.
Kaplansky's 6th conjecture holds for quasitriangular Hopf algebras.
Shlomo Gelaki*, Harvard University
Pavel Etingof, Harvard University
(93316107)

10:00 a.m.
Quantum function algebras, at roots of unity, not finite over their centers.
Edward S Letzter*, Texas A{\&}M University
(93316188)

10:30 a.m.
Quantum determinantal ideals.
Kenneth R Goodearl*, University of California
Thomas H Lenagan, University of Edinburgh
(93316143)

Sunday April 5, 1998, 9:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis and Its Applications to PDE's, III
Room 303, TUCC Organizers: Cristian E. Gutierrez, Temple University gutier@math.temple.edu
Guozhen Lu, Wright State University gzlu@math.wright.edu

9:00 a.m.
The initialDirichlet problem for higher order parabolic equations in Lipschitz cylinders.
Russell M Brown*, University of Kentucky
Wei Hu, Houghton College
(93335168)

9:30 a.m.
Local minima in $W^{1,p}$ versus local mimina in $C^{1,\alpha}$.
Jes\'us Garc\'\i aAzorero, Universidad Aut\'onoma de Madrid
Juan J. Manfredi*, University of Pittsburgh
Ireneo Peral, Universidad Aut\'onoma de Madrid
(9333598)

10:00 a.m.
The characterizatio of wavelets and related functions.
Guido L Weiss*, Washington University
(9334264)

10:30 a.m.
On the Grushin operator and hyperbolic symmetry.
William Beckner*, University of Texas at Austin
(9335827)

Sunday April 5, 1998, 9:00 a.m.10:50 a.m.
Special Session on Heat Kernel Analysis on Lie Groups, III
Room 3B, TUCC Organizers: Leonard Gross, Cornell University gross@math.cornell.edu
Omar Hijab, Temple University hijab@euclid.math.temple.edu

9:00 a.m.
YangMills theory and the SegalBargmann transform.
Bruce K. Driver, UC San Diego
Brian C. Hall*, UC San Diego
(93381169)

9:25 a.m.
Asymptotic Expansions of Hermite Functions on Groups.
Jeffrey J. Mitchell*, Cornell University
(93322132)

9:45 a.m.
Break

10:05 a.m.
The Stransform and Low Dimensional Gauge Theories.
Ambar N Sengupta*, Louisiana State University
(9338169)

10:30 a.m.
The heat kernel measure and DriverGross isometry on infinite dimensional groups.
Maria Gordina*, Cornell University
(93346192)

Sunday April 5, 1998, 9:00 a.m.10:50 a.m.
Special Session on Nonlinear Partial Differential Equations, III
Room 6B, TUCC Organizers: Yanyan Li, Rutgers University yyli@math.rutgers.edu

9:00 a.m.
Optimal Transportation of Manifolds and Shape Recognition.
Wilfrid Gangbo, Georgia Institute of Technology
Robert J McCann*, Brown University
(93349112)

9:30 a.m.
A Singularly Perturbed Elliptic Partial Differential Equation with an Almost Periodic Term .
Greg S Spradlin*, U. CaliforniaDavis
(93335200)

10:00 a.m.
Spikelayered Solutions of Singularly Perturbed Elliptic Problems in a Degenerate Setting.
Manuel del Pino, Universidad de Chile
Patricio Felmer*, Universidad de Chile
(9333592)

10:30 a.m.
Nonradial Solutions of Semilinear Elliptic Equations in ${\bf R}^{N}$.
Joseph A. Iaia*, University of North Texas
(9333551)

Sunday April 5, 1998, 9:30 a.m.10:50 a.m.
Special Session on Sparse Elimination Methods in Polynomial System Solving, III
Room 7B, TUCC Organizers: Ioannis Z. Emiris, INRIA, SophiaAntipolis, France emiris@sophia.inria.fr
J. Maurice Rojas, Massachusetts Institute of Technology rojas@math.mit.edu

9:30 a.m.
Symbolic and numeric methods for exploiting structure in constructing resultant matrices.
Victor Y. Pan*, Lehman College, City University of New York
Ioannis Z. Emiris, INRIA
(93368147)

10:00 a.m.
Sparsity in Dixon Resultants.
Deepak Kapur*, State University of New York at Albany
(93313148)

10:30 a.m.
Structured matrices and polynomial system solving.
Bernard Mourrain*, INRIA
(93315218)

Sunday April 5, 1998, 11:00 a.m.11:50 a.m.
Invited Address
The Yamabe problem on manifolds with boundaries: existence and compactness results.
Room 5B, TUCC
Yanyan Li*, Rutgers University

Sunday April 5, 1998, 1:30 p.m.2:20 p.m.
Invited Address
GromovWitten invariants in higher genus: a survey.
Room 5B, TUCC
Ezra Getzler*, Northwestern University

Sunday April 5, 1998, 2:30 p.m.5:50 p.m.
Special Session on Modular Identities and QSeries in Number Theory, IV
Room 8B, TUCC Organizers: Marvin I. Knopp, Temple University
Boris Datskovsky, Temple University bdats@euclid.math.temple.edu

2:30 p.m.
Rereading L. J. Rogers.
Richard A Askey*, Department of Mathematics University of Wisconsin
(9333321)

3:00 p.m.
Some octahedral congruences for $\eta$products.
Basil Gordon*, UCLA
(93311248)

3:30 p.m.
On $p$adic families of Jacobi forms.
Pavel I Guerzhoy*, Temple University
(9331152)

4:00 p.m.
Function theoretic derivations of Ramanujan partition identities.
Hershel M. Farkas, The Hebrew University of Jerusalem
Irwin Kra*, State University of New York at Stony Brook
(9333068)

4:30 p.m.
The symmetric square $L$function and it's derivative at 1.
Brian Conrey*, American Institute of Mathematics and Oklahoma State University
(9331186)

5:00 p.m.
Density theorems related to the nonvanishing of $L$series of modular forms.
Kevin L James*, Penn. State University
(9331176)

5:30 p.m.
Weyl's Law with Error Estimate for Sl(3,Z) .
Sultan Catto, Baruch College, CUNY
Jonathan M. Huntley, Baruch College, CUNY
NamJong Moh, Graduate Center, CUNY
David E. Tepper*, Baruch College, CUNY
(9331116)

Sunday April 5, 1998, 2:30 p.m.4:50 p.m.
Special Session on Radon Transforms and Tomography, IV
Room 302, TUCC Organizers: Eric L. Grinberg, Temple University grinberg@euclid.math.temple.edu
Eric Todd Quinto, Tufts University etq@math.tufts.edu

2:30 p.m.
Morera type problems in Quaternionic Analysis.
Emilio Marmolejo Olea*, Math Deparment, University of Maryland at College Park, MD 20740.
(93344127)

3:00 p.m.
Some injectivity problems for the Radon transform on real quadrics.
Mark L. Agranovsky*, BarIlan University, RamatGan, Israel
(9334477)

3:30 p.m.
The Spectral Representations for Multitemporal Wave Equations.
Sigurdur Helgason*, MIT
(9332266)

4:00 p.m.
Grassmannian Transforms: An Inversion Formula.
Fulton B Gonzalez*, Tufts University
(9334484)

4:30 p.m.
Radon transform and wave front sets.
Leon Ehrenpreis*, Temple University
(93344145)

Sunday April 5, 1998, 2:30 p.m.4:20 p.m.
Special Session on The History of American Mathematics, IV
Room 10B, TUCC Organizers: David E. Zitarelli, Temple University davidz@euclid.math.temple.edu
Karen H. Parshall, University of Virginia khp3k@virginia.edu

2:30 p.m.
The Structures of Computation.
Michael S. Mahoney*, Princeton University
(93301151)

3:00 p.m.
Origins of spectral sequences.
John H McCleary*, Vassar College
(93301234)

3:30 p.m.
Elbert F. Cox: An early pioneer.
James A. Donaldson, Howard University
Richard J. Fleming*, Central Michigan University
(93301163)

4:00 p.m.
Historical Reflections on the 25th Anniversary of Historia Mathematica .
Joseph W. Dauben*, CUNY
(93301130)

Sunday April 5, 1998, 2:30 p.m.5:20 p.m.
Special Session on Mathematical Pedagogy, IV
Room 404, TUCC Organizers: Orin N. Chein, Temple University orin@euclid.math.temple.edu

2:30 p.m.
Using course portfolios to document teaching.
Orin N. Chein*, Temple University
(93398121)

3:00 p.m.
The World Wide Web as a tool for Teaching Mathematics .
Eugene A. Klotz*, Math Forum/Swarthmore College
(9339833)

3:30 p.m.
Cartographiometry: an interdisciplinary approach to mathematics and cartography.
Elaine F Bosowski, Villanova University
Timothy G Feeman*, Villanova University
(9330041)

4:00 p.m.
A learning styles and reasoning approach to mathematics.
Seymour W. Pustilnik*, New York City Technical College
(93398175)

4:30 p.m.
Mathematics in modern and medieval literature.
Phyllis L. Pustilnik*, Union Institute
(93301176)

5:00 p.m.
Integrating Technology into the Mathematics Classroom.
Anthony Hughes*, Temple University
(93398236)

Sunday April 5, 1998, 2:30 p.m.3:50 p.m.
Special Session on Differential Geometric Methods in Hydrodynamics, IV
Room 2B, TUCC Organizers: Gerard K. Misiolek, University of Notre Dame and California Institute of Technology gmisiole@artin.helios.nd.edu

2:30 p.m.
The Spectral Geometry of Writhe and Helicity.
Jason Cantarella*, University of Pennsylvania
Dennis DeTurck, University of Pennsylvania
Herman Gluck, University of Pennsylvania
(93353135)

3:00 p.m.
${\cal D}^s_\mu(M)$ with weak $H^1$ metric.
Steve Shkoller*, Caltech
(93358165)

3:30 p.m.
On minimal geodesics on groups of volumepreserving maps and the hydrostatic limit of the Euler equations.
Yann Brenier*, Universite Paris 6
(93376252)

Sunday April 5, 1998, 2:30 p.m.4:20 p.m.
Special Session on Nonlinear Partial Differential Equations, IV
Room 6B, TUCC Organizers: Yanyan Li, Rutgers University yyli@math.rutgers.edu

2:30 p.m.
A New Topological Invariant in Abelian Gauge Theory.
Lesley M Sibner*, Polyrechnic University
Robert J Sibner, CUNY,Brooklyn College
Yisong Yang, Polytechnic University
(9335348)

3:00 p.m.
Existence results of conformal metrics with constant scalar curvature and constant boundary mean curvature.
ZhengChao Han*, Rutgers University
YanYan Li, Rutgers University
(93353226)

3:30 p.m.
Decay Estimates for Porous Medium Systems.
Zhengfang Zhou*, Michigan State University
Hongjun Yuan, Jilin University, China
(93335214)

4:00 p.m.
Symmetry of solutions of relativistic ThomasFermiequations.
Michael KH Kiessling*, Dept. Math., Rutgers U., Piscataway, NJ 08854
(93335209)

Sunday April 5, 1998, 2:30 p.m.4:50 p.m.
Special Session on Sparse Elimination Methods in Polynomial System Solving, IV
Room 7B, TUCC Organizers: Ioannis Z. Emiris, INRIA, SophiaAntipolis, France emiris@sophia.inria.fr
J. Maurice Rojas, Massachusetts Institute of Technology rojas@math.mit.edu

2:30 p.m.
Balancing the Lifting Values to Improve the Numerical Stability of Polyhedral Homotopy Continuation Methods.
Tangan Gao, Michigan State University, Department of Mathematics
T.Y. Li, Michigan State University, Department of Mathematics
Jan Verschelde*, Michigan State University, Department of Mathematics
Mengnien Wu, Michigan State University, Department of Mathematics
(9336589)

3:00 p.m.
On the geometry of Graeffe iteration.
Gregorio Malajovich*, Departamento de Matematica Aplicada, UFRJ.
Jorge Passamani Zubelli, IMPA, CNPq
(9336555)

3:30 p.m.
Applications of Various Methods in Elimination Theory to a Problem in Computer Vision.
Peter F. Stiller*, Texas A&M Univeristy
(93314194)

4:00 p.m.
Applications of elimination methods in exactarithmetic based geometric programs.
John C. Keyser*, University of North Carolina at Chapel Hill
Dinesh Manocha, University of North Carolina at Chapel Hill
Shankar Krishnan, AT\&T Research Labs
Tim Culver, University of North Carolina at Chapel Hill
(93314238)

4:30 p.m.
Discussion

Sunday April 5, 1998, 2:30 p.m.3:50 p.m.
Special Session on Sparse Matrix Computations, II
Room 1B, TUCC Organizers: Jesse Barlow, Pennsylvania State University barlow@cse.psu.edu
Daniel B. Szyld, Temple University szyld@math.temple.edu

2:30 p.m.
Symmetric Reduction Redux: Incomplete Factor Preconditioners.
Alex Pothen*, Old Dominion University and ICASE
David Hysom, Old Dominion University
(93368162)

3:00 p.m.
Orderings for Incomplete Factorization Preconditioning of Sparse Nonsymmetric Linear Systems.
Michele Benzi, Los Alamos National Lab
Daniel B Szyld*, Temple University
Arno van Duin, Leiden University
(93365167)

3:30 p.m.
Developing an Efficient Hybrid ICCG Solver .
John G Gilbert, Xerox PARC
Esmond G Ng*, Oak Ridge National Laboratory
Barry W Peyton, Oak Ridge National Laboratory
Padma Raghavan, The Univ. of Tennessee
(93365177)

Sunday April 5, 1998, 2:35 p.m.5:05 p.m.
Special Session on Topology of Manifolds and Varieties, IV
Room 305, TUCC Organizers: Sylvain E. Cappell, New York UniversityCourant Institute
Georgia Triantafillou, Temple University georgia@euclid.math.temple.edu

2:35 p.m.
Topology of complements of plane curves.
Ludmil V Katzarkov, UC Irvine
Tony G Pantev*, University of Pennsylvania
(93314207)

3:15 p.m.
Equivariant Ktheory and Casson's Invariant .
Jonathan L Block*, University of Pennsylvania
(93358246)

3:55 p.m.
Geometry of closed geodesics.
Joseph A Datskovsky*, State University of Rio de Janeiro, Brazil
(93353249)

4:35 p.m.
The Isotopy Classification of Real Affine Quartic Curves.
Anatoly Korchagin, Texas Tech University
David Weinberg*, Texas Tech University
(93314166)

Sunday April 5, 1998, 2:40 p.m.5:30 p.m.
Special Session on Rings and Representations, IV
Room 9B, TUCC Organizers: Maria E. Lorenz, Ursinus College
Martin Lorenz, Temple University lorenz@euclid.math.temple.edu

2:40 p.m.
Schemes of Line Modules.
Brad Shelton, University of Oregon
Michaela Vancliff*, University of Oregon
(9331649)

3:10 p.m.
Noncommutative projective planes of weight (1,1,n).
Darin R Stephenson*, Hope College
(93316202)

3:40 p.m.
Noncommutative symmetric algebras of twosided vector spaces.
David Patrick*, University of Washington
(93316123)

4:10 p.m.
Existence of Critical Modules of GKdimension 2 over Elliptic Algebras.
Kaushal Ajitabh*, Florida International University
(93316210)

4:40 p.m.
Von Neumann Algebras and Linear Independence of Translates.
Peter A. Linnell*, Virginia Tech
(9334674)

5:10 p.m.
On locally nilpotent derivations and AK invariant.
Leonid MakarLimanov*, BarIlan University, 52900 RamatGan, Israel and Wayne State University, Detroit MI, 48202 USA.
(93316138)

Sunday April 5, 1998, 2:40 p.m.4:30 p.m.
Special Session on Heat Kernel Analysis on Lie Groups, IV
Room 3B, TUCC Organizers: Leonard Gross, Cornell University gross@math.cornell.edu
Omar Hijab, Temple University hijab@euclid.math.temple.edu

2:40 p.m.
Spectral theory of differential operators.
Thomas P Branson*, University of Iowa
(93358154)

3:05 p.m.
Inversion of the F.B.I.\ transform on certain infinite radius tubes.
Matthew B. Stenzel*, Ohio State University, Newark Campus
(93343208)

3:25 p.m.
Break

3:45 p.m.
Perturbation theorems for supercontractive semigroups.
Wicharn Lewkeeratiyutkul*, Cornell University
(93358125)

4:10 p.m.
Hypercontractivity over complex manifolds.
Leonard Gross*, Cornell University
(93346111)

Sunday April 5, 1998, 2:45 p.m.5:05 p.m.
Special Session on PDEs in Several Complex Variables, IV
Room 306, TUCC Organizers: Shiferaw Berhanu, Temple University berhanu@euclid.math.temple.edu
Gerardo Mendoza, Temple University gmendoza@math.temple.edu

2:45 p.m.
Analytic and Gevrey Regularity for solutions of PDE's arising in Several Complex Variables .
David S. Tartakoff*, U. of IL at Chicago
(93335146)

3:30 p.m.
The Bergman projection and a complex variables version of Hilbert's 17th problem.
John P. D'Angelo*, University of Illinois
(93332253)

4:05 p.m.
The Cauchy Problem for a Shallow Water Type Equation.
Alex A Himonas*, Univ of Notre Dame
Gerard Misio\l ek, Univ of Notre Dame
(93335158)

4:40 p.m.
On the solvability of linear partial differential equations in spaces of hyperfunctions .
Paulo D. Cordaro*, University of S. Paulo  Brazil
JeanMarie Tre'preau, Universite' Paris VI, France
(93335219)

Sunday April 5, 1998, 2:45 p.m.5:05 p.m.
Special Session on Harmonic Analysis and Its Applications to PDE's, IV
Room 303, TUCC Organizers: Cristian E. Gutierrez, Temple University gutier@math.temple.edu
Guozhen Lu, Wright State University gzlu@math.wright.edu

2:45 p.m.
Regularity of Strong Solutions to Dirichlet Problem for Elliptic Equations with Discontinuous Coefficients.
Giuseppe Di Fazio*, Dep. of Math, Catania University  ITALY
(93335142)

3:15 p.m.
Estimates near the boundary for solutions of second order parabolic equations.
Mikhail V. Safonov*, University of Minnesota
(93335244)

3:45 p.m.
A Generalization of Hall's Lemma to Bounded Domains in $R^n$.
Peter M Knopf*, Pace University
(9333187)

4:15 p.m.
The Dirichlet problem for subLaplacians.
Luca Capogna*, New York University
Nicola Garofalo, Purdue University
DuyMinh Nhieu, Academia Sinica
(9333582)

4:45 p.m.
Integral equation methods for global boundary problems in Riemannian manifolds.
Marius S Mitrea*, University of Missouri
(9333508)
Monday April 6, 1998

Monday April 6, 1998, 8:50 a.m.11:30 a.m.
Ehrenpreis Conference
Walk Auditorium, Ritter Hall, Main Campus

Monday April 6, 1998, 11:30 a.m.12:20 p.m.
Invited Address
Singular Radon transforms: continuous and discrete.
Walk Auditorium, Ritter Hall, Main Campus
Elias M. Stein*, Princeton University

Monday April 6, 1998, 2:00 p.m.4:30 p.m.
Ehrenpreis Conference
Walk Auditorium, Ritter Hall, Main Campus
Inquiries: meet@ams.org

