AMS Sectional Meeting Program by Day
Current as of Tuesday, April 12, 2005 15:08:45
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Inquiries: meet@ams.org
1990 Fall Central Section Meeting
Denton, TX, November 23, 1990
Meeting #861
Associate secretaries:
Andy R Magid, AMS
amagid@ou.edu
Saturday November 3, 1990

Saturday November 3, 1990, 7:00 a.m.9:50 a.m.
Special Session on Geometric Inequalities and Convex Bodies, III
Room 412, University Union Building

7:00 a.m.
Null foliations and gravitational plane wave metrics.
P. Ehrlich*, University of Florida
G. Emch, University of Florida
(8615302)

7:30 a.m.
Deforming curves on convex surfaces to simple closed geodesics.
Michael E. Gage*, University of Rochester
(86153111)

8:00 a.m.
Geometry and uncertainty.
Francis J. Narcowich*, Texas A\thsp\&\thsp M University, College Station
(8615124)

8:30 a.m.
Applications of geometric methods to elliptic and parabolic problems.
Andrejs E. Treibergs*, University of Utah
(8615327)

9:00 a.m.
Inequalities and random convex bodies.
Richard A. Vitale*, University of Connecticut, Storrs
(8615221)

9:30 a.m.
Evolution problem for plastic antiplanar shear.
Xiaodong Zhou*, Rice University
(8614928)

Saturday November 3, 1990, 7:00 a.m.9:50 a.m.
Special Session on Texas Topology and Geometry, III
Room 410, University Union Building

7:00 a.m.
Some quasilinear systems with a lack of ellipticity.
S. Walter Wei*, University of Oklahoma
(86158179)

7:30 a.m.
Determinants on CR manifolds.
Terry Lohrenz*, Wiess School of Natural Sciences, Rice University
(86158196)

8:00 a.m.
The orthogonal spectrum of a hyperbolic manifold.
Ara Basmajian*, University of Oklahoma
(86153177)

8:30 a.m.
Examples of symplectic structures on fiber bundles.
Brian Kasper*, University of Texas, Austin
(8615396)

9:00 a.m.
The gradient flow for the YangMills functional in two and three dimensions.
Johan R\aa de*, University of Texas, Austin
(86135207)

9:30 a.m.
Bifurcation analysis of the Eckhaus instability.
Laurette S. Tuckerman*, University of Texas, Austin
(86176180)

Saturday November 3, 1990, 7:00 a.m.9:50 a.m.
Special Session on Low Dimensional Topology, III
Room 411, University Union Building

7:00 a.m.
Links with trivial AlexanderGassner matrices.
Tim D. Cochran*, Rice University
(8615759)

7:30 a.m.
Torsion and the CassonGordon invariant.
Patrick M. Gilmer*, Louisiana State University, Baton Rouge
Charles Livingston, Indiana University, Bloomington
(8615760)

8:00 a.m.
Homotopically ribbon concordance of fibered knots.
Katura Miyazaki*, University of California at San Diego, La Jolla
(8615766)

8:30 a.m.
Branched coverings of 3manifolds and patterned surfaces.
John Hempel*, Rice University
(8615769)

9:00 a.m.
Contractible open manifolds which are not covering spaces.
David G. Wright*, Brigham Young University
(8615771)

9:30 a.m.
Examples of eventually endirreducible 3manifolds of nonfinite genus at infinity.
Bobby Neal Winters*, Pittsburg State University
(8615711)

Saturday November 3, 1990, 7:00 a.m.9:50 a.m.
Special Session on Representation Theory of Lie Groups, III
Gold Eagle Suite A, University Union Building

7:00 a.m.
A comparison theorem for nhomology.
Henryk Hecht*, University of Utah
Joseph Taylor, University of Utah
(86122129)

7:30 a.m.
Characteristic cycles of holomorphic discrete series.
JenTseh Chang*, Oklahoma State University, Stillwater
(8612252)

8:00 a.m.
Local representations, analytic continuation, and integrability of Lie algebras of operators.
Humberto E. Prado*, Oklahoma State University, Stillwater
(86122122)

8:30 a.m.
Primary summand functions on 3dimensional, compact solvmanifolds.
Carolyn B. Pfeffer*, Rutgers University, New Brunswick
(86122123)

9:00 a.m.
An explicit plancherel formula for exponential solvable Lie groups.
Bradley N. Currey*, Saint Louis University
(8612255)

9:30 a.m.
Global regularity on 3dimensional solvmanifolds.
Jacek M. Cygan*, Louisiana State University, Baton Rouge
Leonard F. Richardson, Louisiana State University, Baton Rouge
(8612208)

Saturday November 3, 1990, 7:00 a.m.9:50 a.m.
Special Session on Differential Equations, III
Silver Eagle Suite C, University Union Building

7:00 a.m.
Existence theorems for secondorder boundary value problems.
Hans G. Kaper*, Argonne National Laboratory
Mariette Knapp, Argonne National Laboratory
Man Kam Kwong, Argonne National Laboratory
(86134206)

7:30 a.m.
Degenerate parabolic systems for a medium with microstructure.
R. E. Showalter*, University of Texas, Austin
N. J. Walkington, Carnegie Mellon University
(8613532)

8:00 a.m.
Strain softening in viscoelasticity of the rate type.
Athanassios E. Tzavaras*, University of Wisconsin, Madison
(86135119)

8:30 a.m.
Bifurcation phenomena in a singular DAE detonation problem.
W. Zhang, Southern Methodist University
I. Gladwell*, Southern Methodist University
(8613447)

9:00 a.m.
Reactiondiffusion systems from climate modeling.
Georg Hetzer*, Auburn University, Auburn
(8613550)

9:30 a.m.
Asymptotic solutions of LotkaVolterra competition equations.
Shair Ahmad*, University of Texas, San Antonio
(8613445)

Saturday November 3, 1990, 7:00 a.m.9:50 a.m.
Special Session on Algebraic Geometry, III
Room 418, University Union Building

7:00 a.m.
On desingularized HorrocksMumford quintics.
Ciprian Borcea*, Institute for Advanced Study
(86114120)

7:30 a.m.
Period relations for twisted Legendre equations.
W. L. Hoyt*, Rutgers University, New Brunswick
(86114154)

8:00 a.m.
Field of definition of the group of sections of elliptic surfaces.
Masato Kuwata*, University of British Columbia,
(86111198)

8:30 a.m.
The singularities of the parameter surface of a minimal elliptic threefolds.
Antonella Grassi*, Tufts University
(86114197)

9:00 a.m.
On a conjecture of Tyurin.
YunGang Ye*, Duke University
(86114212)

9:30 a.m.
Adjunction for vector bundles.
Qi Zhang*, Johns Hopkins University, Baltimore
(86114183)

Saturday November 3, 1990, 7:30 a.m.9:50 a.m.
Special Session on Arithmetic Groups, II
Room 417, University Union Building

7:30 a.m.
Cohomology of the symplectic group SP_4(Z).
Alan B. Brownstein*, Rutgers University, Newark
(8611143)

8:00 a.m.
The "coadjoint" representation of PSp_4(2).
Ronnie Lee, Yale University
Steven H. Weintraub*, Louisiana State University, Baton Rouge
(8612007)

8:30 a.m.
A central series of Torelli groups and its relation to invariants of 3manifolds.
Ronnie Lee*, Yale University
(86155218)

9:00 a.m.
Commensurability of isospectral arithmetic hyperbolic 2 and 3 manifolds.
Alan W. Reid*, Ohio State University, Columbus and University of Aberdeen, Scotland
(86111116)

9:30 a.m.
Short geodesics in arithmetic hyperbolic 3manifolds.
Alan W. Reid, Ohio State University, Columbus and University of Aberdeen, Scotland
Walter D. Neumann*, Ohio State University, Columbus
(8615742)

Saturday November 3, 1990, 7:30 a.m.9:50 a.m.
Special Session on Banach SpacesFunctional Analysis, III
Gold Eagle Suite B, University Union Building

7:30 a.m.
A problem on spreading models.
E. Odell*, University of Texas, Austin
(8614690)

8:00 a.m.
A new approximation scheme for monotone operators on Banach spaces.
Simon Fitzpatrick, University of Auckland, New Zealand
R. R. Phelps*, University of Washington
(8614678)

8:30 a.m.
The Auerbach volumeratio for finitedimensional Banach spaces.
Haskell Rosenthal*, University of Texas, Austin
(8614682)

9:00 a.m.
On unconditionally converging and weakly precompact operators.
Elias Saab*, University of Missouri, Columbia
Paulette Saab, University of Missouri, Columbia
(8614687)

9:30 a.m.
On integral and strictly integral operators.
Paulette Saab*, University of Missouri, Columbia
(8614686)

Saturday November 3, 1990, 7:30 a.m.9:50 a.m.
Special Session on Commutative Algebra, III
Gold Eagle Suite C, University Union Building

7:30 a.m.
On polynomial extensions of atomic domains.
Moshe Roitman*, University of Haifa, Israel and University of North Carolina, Charlotte
(86113220)

8:00 a.m.
Infinite integral extensions and CohenMacaulay algebras.
Melvin Hochster, University of Michigan, Ann Arbor
Craig Huneke*, Purdue University, West Lafayette
(86113187)

8:30 a.m.
Powers of ideals having small analytic deviation.
Sam Huckaba*, Florida State University
Craig Huneke, Purdue University, West Lafayette
(86113208)

9:00 a.m.
Uniform annihilation of local cohomology and of Koszul homology.
K. N. Raghavan*, Purdue University, West Lafayette
(86113186)

9:30 a.m.
Tight closure, joint reductions, and the BrianconSkoda theorem.
Irena Swanson*, Purdue University, West Lafayette
(86113194)

Saturday November 3, 1990, 7:30 a.m.9:50 a.m.
Special Session on Several Complex Variables, II
Room 413, University Union Building

7:30 a.m.
Local analyticity for box_b and the barred partialNeumannproblem for some weakly pseudoconvex domains.
David S. Tartakoff*, University of Illinois, Chicago
(86132145)

8:00 a.m.
Estimates for the Bergman metric.
Jeffery McNeal*, Princeton University
(86132167)

8:30 a.m.
L^2solvability and boundary regularity of the barred partial_bproblem on some pseudoconvex CRmanifolds with boundary.
Ricardo L. Diaz*, Texas A\thsp\&\thsp M University, College Station
(86132173)

9:00 a.m.
The CauchyRiemann equations in convex domains.
John C. Polking*, Rice University
(86132203)

9:30 a.m.
Sobolev estimates for the complex Green operator on a class of weakly pseudoconvex boundaries.
Harold P. Boas*, Texas A\thsp\&\thsp M University, College Station
Emil J. Straube, Texas A\thsp\&\thsp M University, College Station
(86132133)

Saturday November 3, 1990, 8:00 a.m.9:50 a.m.
Special Session on The Probability Theory of Patterns and Runs, III
Room 415, University Union Building

8:00 a.m.
Distribution of balls into urns, where a specific number of urns contains a prescribed number of balls.
S. G. Papastavridis*, University of Patras, Greece
(86160102)

8:30 a.m.
On reliabilities of certain large linearly connected engineering systems.
James C. Fu*, University of Manitoba
(86160100)

9:00 a.m.
Consecutive koutofn systems and some generalizations.
William S. Griffith*, University of Kentucky
(86160109)

9:30 a.m.
Patterns and runs in probability theory.
Anant P. Godbole*, Michigan Technological University
(86160106)

Saturday November 3, 1990, 8:00 a.m.9:30 a.m.
Session on Geometry
Ponder Room, University Union Building

8:00 a.m.
A new stability problem of ULAM.
John M. Rassias*, American College of Greece
(86147126)

8:20 a.m.
Nonlattice packings and coverings with congruent copies of certain convex bodies.
Andr\'as Bezdek, Hungarian Academy of Science, Hungary
G\'abor Fejes T\'oth, Hungarian Academy of Sciences, Cornell University
Wlodzimierz Kuperberg*, Auburn University, Auburn
(86152113)

8:40 a.m.
Saturated packings and reduced coverings.
G\'abor Fejes T\'oth*, Hungarian Academy of Sciences, Cornell University
Wlodzimierz Kuperberg, Auburn University, Auburn
(86152112)

9:00 a.m.
Flat radon transforms.
Eric L. Grinberg*, Temple University, Philadelphia
(86153110)

9:20 a.m.
A combinatorial unknot detector.
Randall H. Weiss*, Blackburn College
(86155216)

Saturday November 3, 1990, 10:00 a.m.10:50 a.m.
Invited Address
Galois representations attached to GL(n,Z)
Lyceum Room, University Union Building
Avner D. Ash*, Ohio State University, Columbus
(8611133)

Saturday November 3, 1990, 12:30 p.m.1:20 p.m.
Invited Address
Combinatorics of intersecting surfaces in 3manifolds.
Lyceum Room, University Union Building
John E. Luecke*, University of Texas, Austin
(86199221)

Saturday November 3, 1990, 2:00 p.m.3:50 p.m.
Special Session on Arithmetic Groups, III
Room 417, University Union Building

2:00 p.m.
Informal Discussion

2:30 p.m.
Examples of discrete subgroups of SU(2,1).
William M. Goldman*, University of Maryland, College Park
(8615741)

3:00 p.m.
Compactifications of quotient spaces of GL(n,R).
Douglas Grenier*, Johns Hopkins University
(8612240)

3:30 p.m.
Finite upper half planes.
Audrey Terras*, University of California at San Diego, La Jolla
(8611185)

Saturday November 3, 1990, 2:00 p.m.4:20 p.m.
Special Session on Banach SpacesFunctional Analysis, IV
Gold Eagle Suite B, University Union Building

2:00 p.m.
Compacta in Banach spaces.
J. H. M. Whitfield*, Lakehead University
(8614679)

2:30 p.m.
Pettis integrable functions as a.e. weak sequential limits of simple functions.
Gunnar Stefansson*, Pennsylvania State University, Altoona
(8614675)

3:00 p.m.
Spectral theory in Banach algebras related by a continuous homomorphism.
Timothy W. Randolph*, University of Missouri, Rolla
(8614776)

3:30 p.m.
Isometric involutions on group algebras.
Paul Patterson*, Saint Louis University
(8614673)

4:00 p.m.
Equicontinuous and relatively weakly compact subsets of the space of Bochner integrable functions L_1(mu,X).
Mark Gruenwald*, University of Evansville
Georg Schl\"uchtermann, Math. Institut der Universit\"at M\"unchen, Germany
(8614672)

Saturday November 3, 1990, 2:00 p.m.4:50 p.m.
Special Session on Geometric Inequalities and Convex Bodies, IV
Room 412, University Union Building

2:00 p.m.
Harmonic maps with nontrivial higher dimensional singularities.
G. Liao*, University of Texas, Arlington
N. Smale, University of Utah
(8615810)

2:30 p.m.
Instability of an equilibrium in a potential field.
Steven D. Taliaferro*, Texas A\thsp\&\thsp M University, College Station
(8617017)

3:00 p.m.
Stability and bifurcation of constant mean curvature surfaces in a wedge.
Thomas I. Vogel*, Texas A\thsp\&\thsp M University, College Station
(8615319)

3:30 p.m.
Differential and integral inequalities.
S. Walter Wei*, University of Oklahoma
(8615318)

4:00 p.m.
A note on the stability theorem of J. L. Barbosa and M. Do Carmo for closed surfaces of constant mean curvature.
Henry C. Wente*, University of Toledo
(8615320)

4:30 p.m.
Estimate on the singular set of heatflow problem for harmonic maps.
Xiaoxi Cheng*, Rice University
(8615829)

Saturday November 3, 1990, 2:00 p.m.4:20 p.m.
Special Session on Commutative Algebra, IV
Gold Eagle Suite C, University Union Building

2:00 p.m.
Powergenerated valuations.
K. Alan Loper*, Lawrence University
(86113209)

2:30 p.m.
Hilbert functions and local cohomology.
Thomas Marley*, University of Nebraska, Lincoln
(86113172)

3:00 p.m.
Onedimensional local rings of finite CohenMacaulay type.
Roger Wiegand*, University of Nebraska, Lincoln
(86113188)

3:30 p.m.
Indecomposable modules over onedimensional local rings.
Roger Wiegand, University of Nebraska, Lincoln
Sylvia Wiegand*, University of Nebraska, Lincoln
(86113189)

4:00 p.m.
Weakly Krull domains and the tclass groups.
D. D. Anderson, University of Iowa
E. G. Houston, University of North Carolina, Charlotte
M. Zafrullah*, Winthrop College
(86113210)

Saturday November 3, 1990, 2:00 p.m.4:50 p.m.
Special Session on Texas Topology and Geometry, IV
Room 410, University Union Building

2:00 p.m.
The Denjoy problem in two dimensions.
Alec Norton*, University of Texas, Austin
(8615831)

2:30 p.m.
Topological properties of some attractors for cylinder maps.
R. Daniel Mauldin*, University of North Texas
(8615498)

3:00 p.m.
Lattice invariants for sofic shifts.
Susan G. Williams*, University of South Alabama
(86154144)

3:30 p.m.
The pYangMills equations.
Thomas Otway*, University of Texas, Austin
Karen Uhlenbeck, University of Texas, Austin
(8613597)

4:00 p.m.
Growth rates and knots.
Daniel S. Silver*, University of South Alabama
(86157143)

4:30 p.m.
The observation of saddle periodic orbits in physical systems.
Daniel P. Lathrop*, University of Texas, Austin
(86170148)

Saturday November 3, 1990, 2:00 p.m.4:50 p.m.
Special Session on Low Dimensional Topology, IV
Room 411, University Union Building

2:00 p.m.
Progress on the homotopy implies isotopy conjecture of laminated 3manifolds.
Will Kazez*, University of Georgia
Dave Gabai, California Institute of Technology
(86157200)

2:30 p.m.
Knots yielding lens spaces.
John Berge*, University of Texas, Austin
(86157199)

3:00 p.m.
Dehn surgery and spherical space forms.
Steven A. Bleiler*, Portland State University
Craig Hodgson, Columbia University
(8615762)

3:30 p.m.
The calculus of curves immersed in surfaces.
J. Scott Carter*, University of South Alabama
(86157201)

4:00 p.m.
The Reidemeister and Markov theorems in 3manifolds.
Paul Sundheim*, University of Texas, Austin
(8615761)

4:30 p.m.
The cohopficity problem for 3manifold groups.
F. Gonz\'alezAcu\~na, Universidad Nacional Autonoma de Mexico
Wilbur Whitten*, Louisiana State University, Baton Rouge
(8615765)

Saturday November 3, 1990, 2:00 p.m.5:20 p.m.
Special Session on Representation Theory of Lie Groups, IV
Gold Eagle Suite A, University Union Building

2:00 p.m.
Invariant forms for subs and quotients of principal series.
Ray A. Kunze*, University of Georgia
(86122158)

2:30 p.m.
Explicit realizations of unitarizable exceptional representations of real rank one semisimple Lie groups.
John E. Gilbert*, University of Texas, Austin
Christopher Meaney, Australian National University, Australia
(86122136)

3:00 p.m.
Szego mappings into representations in cohomology.
Leticia Barchini*, State University of New York, Stony Brook
A. W. Knapp, State University of New York, Stony Brook
(86122161)

3:30 p.m.
Kbifinite and Z(g)finite functions.
JingSong Huang*, University of Utah
(8612254)

4:00 p.m.
Completely prime primitive ideals and quantization.
William McGovern*, University of Washington
(86117121)

4:30 p.m.
Vogan's problem #3 and EnrightShelton theory.
Brian D. Boe*, University of Georgia
David H. Collingwood, University of Washington
(86122132)

5:00 p.m.
Informal Discussion

Saturday November 3, 1990, 2:00 p.m.5:20 p.m.
Special Session on Differential Equations, IV
Silver Eagle Suite C, University Union Building

2:00 p.m.
Flow in fractured porous media.
Jim Douglas, Jr.*, Purdue University, West Lafayette
(8617651)

2:30 p.m.
An efficient RungeKutta (4,5) pair.
P. Bogacki, Old Dominion University
L. F. Shampine*, Southern Methodist University
(8613444)

3:00 p.m.
Continuity of sets of optimal estimators for an output least squares estimation problem.
Luther White*, University of Oklahoma
(86135168)

3:30 p.m.
Geometric algorithms for developable surfaces.
G. J. Fix*, University of Texas, Arlington
(86153175)

4:00 p.m.
Stefan problem with convection.
John R. Cannon*, Lamar University
(8613548)

4:30 p.m.
Vector valued test functions and elliptic systems.
Ruediger Landes*, University of Oklahoma
(86135131)

5:00 p.m.
Study of a class of singular boundary value problems arising in heat transfer.
R. Kannan*, University of Texas, Arlington
(86134217)

Saturday November 3, 1990, 2:00 p.m.4:20 p.m.
Special Session on Algebraic Geometry, IV
Room 418, University Union Building

2:00 p.m.
Spaces of rational functions on curves over finite fields.
Stephen A. DiPippo*, Brigham Young University
(86114174)

2:30 p.m.
Embeddings of rational surfaces as CohenMacaulay varieties.
A. V. Geramita, Queen's University
A. Gimigliano, Universit\'a di Genova, Italy
B. Harbourne*, University of Nebraska, Lincoln
(86114159)

3:00 p.m.
The arithmetic of the Jacobian of a Fermat curve.
William G. McCallum*, University of Arizona
(86114171)

3:30 p.m.
Elliptic surfaces.
Peter F. Stiller*, Texas A\thsp\&\thsp M University, College Station
(86114195)

4:00 p.m.
Informal Discussion

Saturday November 3, 1990, 2:00 p.m.4:20 p.m.
Special Session on Several Complex Variables, III
Room 413, University Union Building

2:00 p.m.
Zeroes of the Szego kernel function.
Steve Bell*, Purdue University, West Lafayette
(8613237)

2:30 p.m.
Characterizations of the unit ball and circular domains in C^n.
SoChin Chen*, State University of New York, Albany
(8613235)

3:00 p.m.
Proper holomorphic mappings between domains in different dimensions.
Stephen A. Chiappari*, University of Illinois, UrbanaChampaign
(8613209)

3:30 p.m.
FatouBieberbach domains.
John Erik Fornaess*, Princeton University
(86132146)

4:00 p.m.
Complex structures on the tangent bundle of a Riemann manifold.
L\'aszl\'o Lempert*, Purdue University, West Lafayette
R\'obert Sz\"oke, University of Notre Dame
(8613236)
Inquiries: meet@ams.org