AMS Sectional Meeting Full Program
Current as of Tuesday, April 12, 2005 15:09:05
1993 Fall Eastern Sectional Meeting
Syracuse, NY, September 1819, 1993
Meeting #884
Associate secretaries: Lesley M Sibner, AMS lsibner@duke.poly.edu
Saturday September 18, 1993

Saturday September 18, 1993, 8:00 a.m.10:20 a.m.
Special Session on Nonlinear Potential Theory, I
Room 313, Carnegie Building

8:00 a.m.
The branched Schwarz lemma via circle packing.
Tomasz Dubejko, University of Tennessee, Knoxville
Kenneth Stephenson*, University of Tennessee, Knoxville
(8843046) 
8:30 a.m.
The commutator spectrum of a discrete two generator group.
F. W. Gehring*, University of Michigan, Ann Arbor
G. J. Martin, University of Auckland, New Zealand
(8843044) 
9:00 a.m.
Quasiconformal manifolds.
Dennis Sullivan*, City College, City University of New York
(88453145) 
9:30 a.m.
Locally conformally flat metrics.
Patricio U. Aviles*, University of Illinois, UrbanaChampaign
(8843182) 
10:00 a.m.
Isoperimetric inequalities on the plane.
Roman Kosecki*, University of Alabama, Birmingham
(8843060)

8:00 a.m.

Saturday September 18, 1993, 8:20 a.m.10:50 a.m.
Special Session on Harmonic Analysis, I
Room 219, Carnegie Building

8:20 a.m.
Apriori bounds for the support of a uniformly rotating white dwarf star.
S. Chanillo*, Rutgers University, New Brunswick
Y. Y. Li, Rutgers University, New Brunswick
(8848504) 
9:00 a.m.
L^p estimates on CR manifolds with a diagonalizable Levi form.
DerChen Chang*, University of Maryland, College Park
Charles Fefferman, Princeton University
(8844216) 
9:40 a.m.
Pointwise convergence of wavelet expansions.
Susan Kelly, University of Wisconsin, La Crosse
Mark Kon*, Boston University
Louise Raphael, Howard University
(8844165) 
10:20 a.m.
A polar coordinates wavelettype expansion.
Jay Epperson, University of New Mexico
Michael Frazier*, Michigan State University
(8844143)

8:20 a.m.

Saturday September 18, 1993, 8:30 a.m.10:30 a.m.
Special Session on Geometric Topology, I
Room 300, Carnegie Building

8:30 a.m.
Relaxation and control over the circle.
Stratos Prassidis*, Vanderbilt University
Bruce Hughes, Vanderbitl University
(8845753) 
9:15 a.m.
Approximate finiteness properties.
C. W. Stark*, University of Florida
(88457149) 
10:00 a.m.
Controlled algebra and splitting assembly maps.
Gunnar Carlsson, Stanford University
Erik Kjaer Pedersen*, State University of New York, Binghamton
(88455168)

8:30 a.m.

Saturday September 18, 1993, 8:30 a.m.10:20 a.m.
Special Session on Computational Problems Involving Polynomials, I
Room 208, Carnegie Building

8:30 a.m.
Improved algorithms for approximating complex polynomial zeros.
Victor Y. Pan*, Herbert H Lehman College, City University of New York
(88468121) 
9:00 a.m.
Computing the continued fraction expansion of a real algebraic number.
Jeremy Johnson*, Drexel University
(88468118) 
9:30 a.m.
Counting zeros and degrees of polynomial maps from^R^n to itself.
Moss Sweedler*, Cornell University
(88468124) 
10:00 a.m.
Determinant formulas for the resultant.
A. Zelevinsky*, Northeastern University
J. Weyman, Northeastern University
(88412127)

8:30 a.m.

Saturday September 18, 1993, 9:00 a.m.10:50 a.m.
Special Session on Commutative Algebra and Algebraic Geometry, I
Room 106, Physics Building

9:00 a.m.
Finding sparse systems of parameters.
David Eisenbud, Brandeis University
Bernd Sturmfels*, Cornell University
(8841308) 
9:30 a.m.
Contractible threefolds with C*action.
Peter Russell*, McGill University,
(8841488) 
10:00 a.m.
Resolution of singularities of a quasiexcellent Noetherian scheme.
Mark Spivakovsky*, University of Toronto
(88414106) 
10:30 a.m.
Intersections of two quadrics, Clifford algebras and hyperellipic curves.
RagnarOlaf Buchweitz*, University of Toronto
(88414176)

9:00 a.m.

Saturday September 18, 1993, 9:00 a.m.10:10 a.m.
Session on Contributed Papers, I
Room 114, Carnegie Building

9:00 a.m.
On monotonic pairs of solid tori.
James R. Bozeman*, Lyndon State College, Vermont and Dartmouth College
(8845721) 
9:15 a.m.
Torus pairs and Whitehead manifolds.
Gabriele M. Germann*, Dartmouth College
(8845722) 
9:30 a.m.
Positive braids with a full twist are prime.
Michael C. Sullivan*, University of Texas, Austin
(8845741) 
9:45 a.m.
Parametrization of pairs of transverse measured foliations without saddle connections on a compact surface.
Lev Slutskin*, New York, New York
(8845731) 
10:00 a.m.
On automorphism groups of the ^4Sphere.
Duane Randall*, Loyola University
(88457166)

9:00 a.m.

Saturday September 18, 1993, 9:30 a.m.10:50 a.m.
Special Session on Algebraic Topology, I
Room 104, Physics Building

9:30 a.m.
Suspension orders and Cartesian products.
Paul Silberbush*, Dartmouth College
(88455137) 
10:00 a.m.
Homotopic nilpotency and LusternikSchnirelmann theory.
Octavian Cornea*, University of Rochester
(8845569) 
10:30 a.m.
The unstable Adams spectral sequence of twostage Postnikov towers.
Kathryn Lesh*, University of Toledo
(88455159)

9:30 a.m.

Saturday September 18, 1993, 9:30 a.m.10:50 a.m.
Special Session on Representations of Finite Dimensional Algebras, I
Room 311, Carnegie Building

9:30 a.m.
New properties of almost split sequences.
Maurice Auslander*, Brandeis University
(8841606) 
10:00 a.m.
Quotient categories of modules.
Jon F. Carlson*, University of Georgia
(8842019) 
10:30 a.m.
Right approximations and functorial torsion theories.
Ron Gentle*, Eastern Washington University, Cheney
Gordana Todorov, Northeastern University
(8841898)

9:30 a.m.

Saturday September 18, 1993, 9:30 a.m.10:40 a.m.
Special Session on Topics in Probability, I
Room 316, Carnegie Building

9:30 a.m.
Subdiffusive fluctuations for internal diffusion limited aggregation.
Gregory F. Lawler*, Duke University
(8846040) 
10:10 a.m.
The contact process on homogeneous trees.
Rinaldo Schinazi*, University of Colorado, Colorado Springs
(8840551)

9:30 a.m.

Saturday September 18, 1993, 9:30 a.m.10:40 a.m.
Special Session on Lie Theoretic Methods in Mathematical Physics, I
Room 220, Carnegie Building

9:30 a.m.
Spinor construction of the c = 1/2 minimal model.
Alex J. Feingold*, State University of New York, Binghamton
John F. X. Ries, East Carolina University
(88417174) 
10:10 a.m.
Global vertix operators on Riemann surfaces.
Yongchang Zhu*, California Institute of Technology
(8841793)

9:30 a.m.

Saturday September 18, 1993, 10:00 a.m.10:50 a.m.
Special Session on Differential Geometry and Global Analysis, I
Room 306, Carnegie Building

10:00 a.m.
On the harmonic mean curvature flow of surfaces.
Michael E. Gage*, University of Rochester
(88453160) 
10:30 a.m.
A pinching and classification theorems for minimal submanifolds.
BangYen Chen*, Michigan State University
(8845323)

10:00 a.m.

Saturday September 18, 1993, 11:00 a.m.11:50 a.m.
Invited Address
Minimal series representations and conformal symmetry.
Stolkin Auditorium, Physics Building
Alvany Rocha*, Graduate School and University Center, City University of New York
(88417177) 
Saturday September 18, 1993, 1:30 p.m.2:20 p.m.
Invited Address 
Saturday September 18, 1993, 2:40 p.m.5:25 p.m.
Special Session on Geometric Topology, II
Room 300, Carnegie Building

2:40 p.m.
Transversality homology manifolds.
John Bryant, Florida State University
Washington Mio*, Florida State University
(88457163) 
3:25 p.m.
Topological finiteness theorems in GromovHausdorff space.
Steven C. Ferry*, State University of New York, Binghamton
(88453171) 
4:10 p.m.
Ends of Gmanifolds, I.
Frank Connolly, University of Notre Dame
Bogdan Vajiac*, University of Notre Dame
(8845776) 
4:55 p.m.
Ends of Gmanifolds, II.
Frank Connolly*, University of Notre Dame
Bogdan Vajiac, University of Notre Dame
(8845777)

2:40 p.m.

Saturday September 18, 1993, 2:40 p.m.5:00 p.m.
Special Session on Commutative Algebra and Algebraic Geometry, II
Room 106, Physics Building

2:40 p.m.
Uniform ArtinRees, BrianconSkoda, and resolution of singularities.
Craig Huneke*, Purdue University, West Lafayette
(8841384) 
3:10 p.m.
Hilbert series and Betti numbers.
E. Graham Evans, Jr.*, University of Illinois, UrbanaChampaign
(8841889) 
3:40 p.m.
Ramification in infinite integral extensions.
Shreeram S. Abhyankar, Purdue University, West Lafayette
William J. Heinzer*, Purdue University, West Lafayette
(8841370) 
4:10 p.m.
Initial generators of Gorenstein ideals.
Matthew Miller*, University of South Carolina, Columbia
Rafael Villarreal, Instituto Politecnico Nacional, Mexico
(8841329) 
4:40 p.m.
On fat points and fat curves.
Karen A. Chandler*, University of Chicago
(88414150)

2:40 p.m.

Saturday September 18, 1993, 2:40 p.m.4:30 p.m.
Special Session on Harmonic Analysis, II
Room 219, Carnegie Building

2:40 p.m.
The pin, the fin and the cone.
Gregory Verchota*, Syracuse University
Jill Pipher, Brown University
(88435175) 
3:20 p.m.
Mixed boundary value problems for Laplace's equation in Lipschitz domains.
Russell M. Brown*, University of Kentucky
(8843554) 
4:00 p.m.
Weighted norm estimates for some operators related to starlike sets.
Richard Wheeden*, Rutgers University, New Brunswick
(8844207)

2:40 p.m.

Saturday September 18, 1993, 2:40 p.m.5:30 p.m.
Special Session on Representations of Finite Dimensional Algebras, II
Room 311, Carnegie Building

2:40 p.m.
Algebras whose radicals have top trace filtrations.
I. \'Agoston, Academy of Sciences, Budapest, Hungary
V. Dlab*, Carleton University
E. Luk\'acs, Technical Univeristy, Budapest, Hungary
(8841671) 
3:10 p.m.
Glueings of tilted algebras.
Ibrahim Assem*, University of Sherbrooke
Flavio Ulhoa Coelho, University of Sao Paulo, Brasil
(8841610) 
3:40 p.m.
Divisible torsionfree modules for successor closed subcategories.
Andrew P. Dean*, Bishop's University
(88416108) 
4:10 p.m.
Descriptions of some extensionless modules.
Frank Okoh*, Wayne State University
(8841661) 
4:40 p.m.
A question on classical orders of finite global dimension.
James Kuzmanovich, Wake Forest University
Ellen Kirkman*, Wake Forest University
(8841696) 
5:10 p.m.
Minimal prime ideals in the enveloping algebras of Lie superalgebras.
James Kuzmanovich*, Wake Forest University
Ellen Kirkman, Wake Forest University
(8841697)

2:40 p.m.

Saturday September 18, 1993, 2:40 p.m.6:30 p.m.
Special Session on Nonlinear Potential Theory, II
Room 313, Carnegie Building

2:40 p.m.
Unique continuation for elliptic equations.
Tom Wolff*, University of California Berkeley
(88431114) 
3:10 p.m.
Aharmonic tensors.
Craig A. Nolder*, Florida State University
(8843059) 
3:40 p.m.
Estimates for solutions of pharmonic systems.
Emanuele DiBenedetto*, Northwestern University
(8843581) 
4:10 p.m.
Topological properties of mappings with finite energy.
Vladim\u\i r \v Sver\'ak*, University of Minnesota, Minneapolis
(8843078) 
4:40 p.m.
A nonexistence result for the nLaplacian.
Tilak Bhattacharya*, Indian Statistical Institute, India
(8843180) 
5:10 p.m.
Weakly elliptic systems with obstacle constraints.
David R. Adams*, University of Kentucky
(8843512) 
5:40 p.m.
On very weak solutions of certain parabolic systems.
John Lewis*, University of Kentucky
(8843017) 
6:10 p.m.
Capacities and harmonic measures for elliptic operators of nondivergence form.
JangMei Wu*, University of Illinois, UrbanaChampaign
(8843148)

2:40 p.m.

Saturday September 18, 1993, 2:40 p.m.5:10 p.m.
Special Session on Topics in Probability, II
Room 316, Carnegie Building

2:40 p.m.
Lim inf results for Gaussian samples and Chung's FLIL.
James Kuelbs*, University of Wisconsin, Madison and University of Delaware
Michael Talagrand, University of Paris, France
(8846005) 
3:20 p.m.
Trimmed sums and the central limit theorem.
Daniel C. Weiner*, Boston University
(88460155) 
4:00 p.m.
Stationary additive random fields indexed by sets.
Loren D. Pitt*, University of Virginia
(8846068) 
4:40 p.m.
Gaussian chaos and functional LIL's for ItoWiener integrals.
Victor Goodman*, Indiana University, Bloomington
(8846083)

2:40 p.m.

Saturday September 18, 1993, 2:40 p.m.5:10 p.m.
Special Session on Lie Theoretic Methods in Mathematical Physics, II
Room 220, Carnegie Building

2:40 p.m.
The generalization of KodairaSpencer deformation theory to the case of differential operators of higher order.
V. Schechtman*, State University of New York, Stony Brook
(88417173) 
3:20 p.m.
Homotopy lie algebra structures in conformal field theory.
Jim Stasheff*, University of North Carolina, Chapel Hill
Alexander A. Voronov, Princeton University
(88481147) 
4:00 p.m.
Operadic formulation of topological vertex algebras and GerstenhaberBatalinVilkovisky algebras.
YiZhi Huang*, University of Pennsylvania
(8840885) 
4:40 p.m.
A classification of type 1 vertex operator algebras.
Bong H. Lian*, University of Toronto
(88417178)

2:40 p.m.

Saturday September 18, 1993, 2:45 p.m.4:55 p.m.
Session on Contributed Papers, II
Room 114, Carnegie Building

2:45 p.m.
Preimages of thin sets under inner functions.
G. T. Cargo*, Syracuse University
(88430107) 
3:00 p.m.
Harmonic mappings and extremal quasiconformal extensions.
Shanshuang Yang*, University of California, Los Angeles
(8843087) 
3:15 p.m.
Independent variables in electrodynamics.
Domina Eberle Spencer*, University of Connecticut, Storrs
(8847863) 
3:30 p.m.
Retarded potentials and Maxwell's equations.
Philip J. Mann*, University of Connecticut, Storrs
(8847864) 
3:45 p.m.
Characterization of spherical transform of functions and Schwartz multipliers on the Heisenberg group.
Tefera Worku*, State University of New York, Albany
(8844302) 
4:00 p.m.
Hypoellipticity results in spaces of generalized distributions.
Jeffrey J. Ibbotson*, Merrimack College
(88435101) 
4:15 p.m.
Nonrecursive functions, knots ``with thick ropes''and selfclenching ``thick''hyperspheres.
Alexander Nabutovsky*, University of Toronto
(8845338) 
4:30 p.m.
Sufficient conditions for one domain to enclose another in the plane of constant curvature.
Jiazu Zhou*, Temple University
(8845301) 
4:45 p.m.
L^pa theory of differential forms on manifolds.
Chad Scott*, Syracuse University
(88458165)

2:45 p.m.

Saturday September 18, 1993, 3:00 p.m.5:20 p.m.
Special Session on Algebraic Topology, II
Room 104, Physics Building

3:00 p.m.
On the realizations of certain amodules and their properties.
Binhua Mao*, University of Rochester
(8845586) 
3:30 p.m.
On the action of Steenrod squares on polynomial algebras.
Judith Silverman*, University of Michigan, Ann Arbor
(88455132) 
4:00 p.m.
The functorial approach to ring and module spectra.
Anthony D. Elmendorf*, Purdue University, Calumet Campus
(88455135) 
4:30 p.m.
Change of universe functors in equivariant stable homotopy theory.
L. Gaunce Lewis, Jr.*, Syracuse University
(88455136) 
5:00 p.m.
Asymptotic calculations in the stable stems.
Igor Kriz*, Chicago University
(88455134)

3:00 p.m.

Saturday September 18, 1993, 3:00 p.m.4:50 p.m.
Special Session on Differential Geometry and Global Analysis, II
Room 306, Carnegie Building

3:00 p.m.
Weitzenbock formulas, isometric immersions, and integral homology vanishing theorems.
K. D. Elworthy, University of Warwick, England
Steven Rosenberg*, Boston University
(8845337) 
3:30 p.m.
Extremal unit vector fields on 3sphere.
Jiangfan Li*, University of Pennsylvania
(8845303) 
4:00 p.m.
Focal points and support functions in affine differential geometry.
Thomas E. Cecil*, College of the Holy Cross, Massachusetts
(8845311) 
4:30 p.m.
A new isoperimetric estimate and applications to the Martin boundary.
Jianguo Cao*, Cornell University
(8845366)

3:00 p.m.

Saturday September 18, 1993, 3:00 p.m.4:50 p.m.
Special Session on Computational Problems Involving Polynomials, II
Room 208, Carnegie Building

3:00 p.m.
Solving systems of real quadratic equations.
A. Barvinok*, Cornell University
(88468115) 
3:30 p.m.
Counting curves over finite fields.
Joachim Von Zur Gathen*, University of Toronto,
(88468116) 
4:00 p.m.
Complexity of solving systems of linear differential equations.
D. Yu Grigoriev*, Pennsylvania State University, University Park
(88468117) 
4:30 p.m.
Current status of the sparse Nullstellensatz.
Paul Pedersen*, Cornell University
(88468122)

3:00 p.m.
Sunday September 19, 1993

Sunday September 19, 1993, 8:00 a.m.10:20 a.m.
Special Session on Nonlinear Potential Theory, III
Room 313, Carnegie Building

8:00 a.m.
Weak Schwarzians, bounded hyperbolic distortion and smooth quasisymmetric functions.
Brad Osgood*, Stanford University
(8843049) 
8:30 a.m.
Convex functions of bounded type.
Mario Bonk*, University of Michigan
(8843024) 
9:00 a.m.
Absolutely continuous conjugations of Blaschke products. III.
David H. Hamilton*, University of Maryland, College Park
(8843027) 
9:30 a.m.
Zeros of derivatives of meromorphic functions.
A. Hinkkanen*, University of Illinois, UrbanaChampaign
(88430144) 
10:00 a.m.
Inequalities for Bloch functions.
C. David Minda*, University of Cincinnati
(8843055)

8:00 a.m.

Sunday September 19, 1993, 8:10 a.m.10:40 a.m.
Special Session on Topics in Probability, III
Room 316, Carnegie Building

8:10 a.m.
Sharp inequalities for continuous path Martingales under differential subordination with applications to singular integrals.
Gang Wang*, DePaul University
Rodrigo Banuelos, Purdue University, West Lafayette
(8846092) 
8:50 a.m.
On the structure of stationary stable processes.
Jan Rosinski*, University of Tennessee, Knoxville
(8846032) 
9:30 a.m.
Upper bound for the L_pnorm of WalshPaley martingales.
Pawe\'l Hitczenko*, North Carolina State University, Raleigh
(8846039) 
10:10 a.m.
Brownian motion, univalent functions, and the Bass note of a drum.
Rodrigo Banuelos*, Purdue University, West Lafayette
Tom Carroll, University College, Republic of Ireland
(8843152)

8:10 a.m.

Sunday September 19, 1993, 8:30 a.m.10:20 a.m.
Special Session on Computational Problems Involving Polynomials, III
Room 208, Carnegie Building

8:30 a.m.
A case of the Jacobian conjecture.
Takis Sakkalis*, Oakland University
Charles ChingAn Cheng, Oakland University
Stuart SuiSheng Wang, Oakland University
(88412123) 
9:00 a.m.
Asymptotically fast solution of Toeplitzlike singular linear systems.
Erich Kaltofen*, Rensselaer Polytechnic Institute
(88468119) 
9:30 a.m.
On multivariate resultants and triangular sets.
Y. N. Lakshman*, Drexel University
(88468126) 
10:00 a.m.
Irreducible componenets of the varieties defined by certain transcendental terms.
Nicolai Vorobjov*, Cornell University
(88468125)

8:30 a.m.

Sunday September 19, 1993, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Topology, III
Room 104, Physics Building

9:00 a.m.
^kotheory of ^D8 and ^E4 and applications to homotopy theory.
Dilip Bayen*, Wayne State University
(88455157) 
9:30 a.m.
An algebra of extended power operations in unoriented cobordism.
Terrence P. Bisson*, Canisius College
Andre Joyal, University of Quebec at Montreal
(88455110) 
10:00 a.m.
Real Ktheory and spincobordism with singularities.
Boris I. Botvinnik*, University of Oregon
(8845591) 
10:30 a.m.
Symplectic topology, rational homotopy and the Gottlieb group.
John Oprea*, Cleveland State University
(8845514)

9:00 a.m.

Sunday September 19, 1993, 9:00 a.m.10:50 a.m.
Special Session on Commutative Algebra and Algebraic Geometry, III
Room 106, Physics Building

9:00 a.m.
Self intersections and singularities (1).
Dan Edidin*, Cornell University
Mike Stillman, Cornell University
Wolfgang Vogel, Cornell University
(8841475) 
9:30 a.m.
Thin algebras, fat points, and the Waring problem.
J. Emsalem, University of Paris VII, France
A. Iarrobino, Jr.*, Northeastern University
V. Kanev, Bulgaria Academy of Sciences, Sofia
(88414169) 
10:00 a.m.
Geometric consequences of Macaulay's maximal growth of the Hilbert function.
Anna Bigatti, University of Genova, Italy
Anthony V. Geramita, Queen's University
Juan C. Migliore*, University of Notre Dame
(8841373) 
10:30 a.m.
Points in good position in P^2.
B. Harbourne*, University of Nebraska, Lincoln
(8841472)

9:00 a.m.

Sunday September 19, 1993, 9:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis, III
Room 219, Carnegie Building

9:00 a.m.
Singular numbers and integral representations of Hankel forms in the line, the plane and the sympletic plane.
Mischa Cotlar, Universidad Central de Venezuela, Venezuela
Cora S. Sadosky*, Howard University
(8844334) 
9:40 a.m.
Hardy spaces on pseudoconvex domains.
Galia Dafni*, Princeton University
(8843233) 
10:20 a.m.
On L^p and H^1 boundedness of oscillatory singular integrals.
Yibiao Pan*, University of Pittsburgh
(8844242)

9:00 a.m.

Sunday September 19, 1993, 9:00 a.m.10:50 a.m.
Special Session on Differential Geometry and Global Analysis, III
Room 306, Carnegie Building

9:00 a.m.
Exotic black holes.
Arthur G. Wasserman*, University of Michigan, Ann Arbor
(88483113) 
9:30 a.m.
A variational characterization of Kcontact manifolds.
David E. Blair*, Michigan State University
Domenico Perrone, University Degli Studi, Italy
(8845336) 
10:00 a.m.
The topology of spaces of harmonic maps.
Martin A. Guest*, University of Rochester
Yoshihiro Ohnita, Tokyo Metropolitan University, Japan
(8845820) 
10:30 a.m.
Cohomogeneitytwo Ginvariant stable minimal cones and the Bernstein problem.
Wei Chen*, Syracuse University
WuTeh Hsiang, Syracuse University
(88458104)

9:00 a.m.

Sunday September 19, 1993, 9:00 a.m.10:50 a.m.
Special Session on Representations of Finite Dimensional Algebras, III
Room 311, Carnegie Building

9:00 a.m.
Quasihereditary algebras of finite type and Schur algebras.
Stephen Donkin, Queen Mary & Westfield College
Idun Reiten*, University of Trondheim, Norway
(88416139) 
9:30 a.m.
Variants of Alperin's conjecture.
Geoffrey R. Robinson*, University of Florida
(8842067) 
10:00 a.m.
Algebras whose projective modules are reflexive.
K. R. Fuller*, University of Iowa
W. K. Nicholson, University of Calgary
J. F. Watters, University of Leicester, United Kingdom
(8841694) 
10:30 a.m.
Universal localization and hereditary rings.
Mike May*, Saint Louis University
(88416161)

9:00 a.m.

Sunday September 19, 1993, 9:00 a.m.10:40 a.m.
Session on Contributed Papers, III
Room 114, Carnegie Building

9:00 a.m.
Projective modules over subrings of polynomial rings.
Hongnian Li*, Washington University in St. Louis
(8841313) 
9:15 a.m.
Orders from group schemes.
Robert G. Underwood*, State University of New York, College at Oswego
(88413100) 
9:30 a.m.
On fine moduli varieties for algebraic threefolds.
Khomo T. S. Mohapeloa*, Pennsylvania State University, McKeesport
(88414103) 
9:45 a.m.
Resolving triangular automorphisms in dimension three.
Gene Freudenburg*, Ball State University
(8841426) 
10:00 a.m.
Periodicity of the fixed locus of multiples of a divisor on a surface.
S. Dale Cutkosky*, University of Missouri, Columbia
V. Srinivas, University of Missouri, Columbia
(88414164) 
10:15 a.m.
Transfers: Ktheory versus BeckerGottlieb.
Bruce Williams*, University of Notre Dame
(88419167) 
10:30 a.m.
A structure theorem for partially asynchronous relaxations.
Reza Gharavi, Cornell University
Venkat Anantharam*, Cornell University
(88468172)

9:00 a.m.

Sunday September 19, 1993, 9:15 a.m.10:30 a.m.
Special Session on Geometric Topology, III
Room 300, Carnegie Building

9:15 a.m.
Surfaces dual to the second StiefelWhitney class.
Laurence R. Taylor*, University of Notre Dame
(88457148) 
10:00 a.m.
A space with two nonequivalent nonpositively curved triangulations
Pedro A. Ontaneda*, State University of New York at Stony Brook
(8845799)

9:15 a.m.

Sunday September 19, 1993, 9:30 a.m.10:40 a.m.
Special Session on Lie Theoretic Methods in Mathematical Physics, III
Room 220, Carnegie Building

9:30 a.m.
The vertex operator Weil algebra and its cohomologies.
Fusun Akman*, Mathematical Sciences Research Institute, Berkeley
(88417109) 
10:10 a.m.
Twisted representations of vertex operator algebras and orbifold theory.
Chongying Dong*, University of California, Santa Cruz
Geoffrey Mason, University of California, Santa Cruz
(8844662)

9:30 a.m.

Sunday September 19, 1993, 11:00 a.m.11:50 a.m.
Invited Address
Complexity theory, roundoff errors and linear programming.
Stolkin Auditorium, Physics Building
James Renegar*, Cornell University
(88468129) 
Sunday September 19, 1993, 1:30 p.m.2:20 p.m.
Invited Address
The rational homology of the padic completion of a sphere.
Stolkin Auditorium, Physics Building
Charles A. McGibbon*, Wayne State University
(88499179) 
Sunday September 19, 1993, 2:40 p.m.4:40 p.m.
Special Session on Geometric Topology, IV
Room 300, Carnegie Building

2:40 p.m.
Surgery theory of manifolds of bounded geometry.
Oliver M. Attie*, McMaster University
(8845595) 
3:25 p.m.
A generalization of Serre's invariants branched covering spaces.
Ronnie Lee*, Yale University
Steven Weintraub, Louisiana State University, Baton Rouge
(88454130) 
4:10 p.m.
Bounded topology and similarity of group representations.
I. Hambleton*, McMaster University
E. K. Pedersen, State University of New York, Binghamton
(88457156)

2:40 p.m.

Sunday September 19, 1993, 2:40 p.m.4:30 p.m.
Special Session on Commutative Algebra and Algebraic Geometry, IV
Room 106, Physics Building

2:40 p.m.
Counterexamples to the Hibi conjecture.
Leslie G. Roberts*, Queen's University
(8841330) 
3:10 p.m.
Resolutions of some Buchsbaum modules.
Hara Charalambous*, State University of New York, Albany
(88413142) 
3:40 p.m.
Gaps in Rao modules of algebraic space curves.
Edward D. Davis*, State University of New York, Albany
(8841474) 
4:10 p.m.
Self intersections and singularities (2).
Dan Edidin, Cornell University
Mike Stillman*, Cornell University
Wolfgang Vogel, Cornell University
(88413143)

2:40 p.m.

Sunday September 19, 1993, 2:40 p.m.3:50 p.m.
Special Session on Harmonic Analysis, IV
Room 219, Carnegie Building

Sunday September 19, 1993, 2:40 p.m.4:00 p.m.
Special Session on Representations of Finite Dimensional Algebras, IV
Room 311, Carnegie Building

2:40 p.m.
Approximating representations of finite dimensional algebras by more tractable ones.
Birge Zimmermann Huisgen*, University of California, Santa Barbara
(88416162) 
3:10 p.m.
Functor categories and sets with a group action.
Peter J. Webb*, University of Minnesota
(88420138) 
3:40 p.m.
Representations of covering quantum groups.
Edward L. Green*, Virginia Polytech Institute & State University
(88416140)

2:40 p.m.

Sunday September 19, 1993, 2:40 p.m.6:00 p.m.
Special Session on Nonlinear Potential Theory, IV
Room 313, Carnegie Building

2:40 p.m.
Comparison of solutions of p.d.e.'s by symmetrization.
Albert Baernstein, II*, Washington University
(8843047) 
3:10 p.m.
Global integrability of the Jacobian and quasiconformal maps.
Susan Staples*, College of Staten Island, City University of New York
(8843018) 
3:40 p.m.
Finite vs. infinite capacity, continuity of Sobolev functions, and Dirichlet finite harmonic measures.
David A. Herron*, University of Cincinnati
Pekka Koskela, University of Michigan, Ann Arbor
(8843145) 
4:10 p.m.
Taylor coefficeints and BMOA.
Thomas A. Metzger*, University of Pittsburgh, Pittsburgh
(8843079) 
4:40 p.m.
Nonlinear potential theory and quasiregular maps on Carnot groups.
Juha Heinonen*, University of Michigan, Ann Arbor
Ilkka Holopainen, University of Helsinki, Finland
(8843058) 
5:10 p.m.
Mappings with integrable dilatation.
Juan J. Manfredi, University of Pittsburgh
Enrique Villamor*, Florida International University
(8843057) 
5:40 p.m.
SobolevPoincare inequalities for 0
Stephen Buckley, University of Michigan, Ann Arbor
Pekka Koskela*, University of Michigan, Ann Arbor
(8843156)

2:40 p.m.

Sunday September 19, 1993, 2:40 p.m.4:30 p.m.
Special Session on Lie Theoretic Methods in Mathematical Physics, IV
Room 220, Carnegie Building

2:40 p.m.
Spectrum generating affine Lie algebras and correlation functions in massive field theory.
Andre Leclair*, Cornell University
(88420105) 
3:20 p.m.
A geometric realization of quantum groups and their generalization.
Jintai Ding*, Yale University
(88417146) 
4:00 p.m.
On the Gel'fandKirillov conjecture for quantum groups.
Feodor Malikov*, Yale University
(88416102)

2:40 p.m.

Sunday September 19, 1993, 2:45 p.m.3:55 p.m.
Session on Contributed Papers, IV
Room 114, Carnegie Building

2:45 p.m.
Recurrence, amenability, and the universal cover of graphs.
Sam Northshield*, State University of New York, College at Plattsburgh
(8846009) 
3:00 p.m.
Frechet algebras generated by certain of their elements.
S. Ouzomgi*, Pennsylvania State University, Ogontz
L. Redlin, Pennsylvania State University, Ogontz
S. Watson, California State University, Long Beach
(88446131) 
3:15 p.m.
Inverse extremum problems and methods of their solution.
Eynshteyn Averbukh*, Computer Sciences Corporation, Pennsylvania
(88493151) 
3:30 p.m.
Macrodynamics equations with approximately balanced kinetic function.
Eynshteyn Averbukh, Computer Sciences Corporation, Pennsylvania
Yuly Brodsky*, Adelphi University
(88434152) 
3:45 p.m.
A generalization of the classical Cauchy inequality.
Eynshteyn Averbukh*, Computer Sciences Corporation
Dmitry Mavlo, Joint Institute for Nuclear Research, Russia
(88426153)

2:45 p.m.

Sunday September 19, 1993, 3:00 p.m.4:50 p.m.
Special Session on Algebraic Topology, IV
Room 104, Physics Building

3:00 p.m.
Looping BousdfieldKan towers.
James M. Turner*, Massachusetts Institute of Technology
(88455158) 
3:30 p.m.
A corrected version of the telescope conjecture.
Paul Shick*, John Carroll University
(8845515) 
4:00 p.m.
A BP analog of Hopkins' zeta conjecture.
Mark A. Hovey*, University of Kentucky
(8845590) 
4:30 p.m.
Isogenies and operations in complex oriented cohomology.
Neil Strickland*, Massachusetts Institute of Technology
(88455133)

3:00 p.m.

Sunday September 19, 1993, 3:00 p.m.3:50 p.m.
Special Session on Differential Geometry and Global Analysis, IV
Room 306, Carnegie Building

Sunday September 19, 1993, 3:00 p.m.4:20 p.m.
Special Session on Computational Problems Involving Polynomials, IV
Room 208, Carnegie Building

3:00 p.m.
Decomposition of algebraic functions.
Dexter Kozen*, Cornell University
Richard E. Zippel, Cornell University
Susan Landau, University of Massachusetts, Amherst
(88468120) 
3:30 p.m.
Effective algorithms for polynomial irreducibility testing.
Richard Zippel*, Cornell University
(88468128) 
4:00 p.m.
Solving sparse polynomial systems.
Birkett Huber*, Cornell University
(88468154)

3:00 p.m.