AMS Sectional Meeting Full Program

Current as of Tuesday, April 12, 2005 15:08:43

Program | Deadlines | Inquiries: meet@ams.org

1990 Southeast Section Meeting
Fayetteville, AR, March 23-24, 1990
Meeting #856

Associate secretaries:
Joseph A Cima, AMS cima@email.unc.edu

Friday March 23, 1990

Friday March 23, 1990, 7:00 a.m.-9:55 a.m.
Special Session on Banach Algebras, I
Room 411, Center for Continuing Education
- 7:00 a.m.
  Spectral theory in F-algebras with applications to Laplace transforms.
  Bruce Barnes*, University of Oregon
  (856-46-75)
- 7:30 a.m.
  A characterization of operator algebras and applications.
  David P. Blecher*, University of Houston, Houston
  (856-46-82)
- 8:00 a.m.
  Standard homomorphisms and regulated weights on weighted convolution algebras.
  F. Ghahramani*, University of Manitoba
  J. P. McClure, University of Manitoba
  S. Grabiner, Pomona College
  (856-46-10)
- 8:30 a.m.
  Convergent sequences and standard ideals in weighted convolution algebras.
  Sandy Grabiner*, Pomona College
  (856-46-11)
- 9:00 a.m.
  Informal Discussion

Friday March 23, 1990, 7:00 a.m.-9:30 a.m.
Special Session on Complex Function Theory of One and Several Variables, I
Room 402, Center for Continuing Education
- 7:00 a.m.
  Removable singularities for L^1 CR functions.
  John T. Anderson*, College of the Holy Cross
  Joseph A. Cima, University of North Carolina, Chapel Hill
  (856-32-115)
- 7:40 a.m.
  Some results related to Landau's covering theorem.
  Albert Baernstein, II*, Washington University
  (856-30-40)
- 8:20 a.m.
  Some open problems in one and several complex variables.
  Roger W. Barnard*, Texas Tech University
  (856-30-84)
- 9:00 a.m.
  Sets lying over the sphere in C^2.
  John Wermer*, Brown University
  (856-32-79)

Friday March 23, 1990, 7:00 a.m.-9:30 a.m.
Special Session on Phase-type Distributions and Some Applications, I
Room 107, Center for Continuing Education
- 7:00 a.m.
  New results on the single server queue with a batch Markovian arrival process.
  David M. Lucantoni*, AT&T Bell Laboratories, Holmdel, New Jersey
  (856-90-24)
- 7:40 a.m.
  Phase-type representation of waiting times.
  Soren Asmussen*, Chalmers Institute of Technology, Sweden
  (856-90-26)
- 8:30 a.m.
  Phase-distribution selection methods: Recent developments.
  Mary A. Johnson*, University of Arizona
  (856-90-25)
- 9:00 a.m.
  Implementation of matrix analytic methods for phase type queues using uniformization techniques.
  V. Ramaswami*, Bell Communications Research, Morristown, New Jersey
  (856-90-21)

Friday March 23, 1990, 7:00 a.m.-9:50 a.m.
Special Session on Geometry, Physics and Nonlinear PDE's, I: Monge-Amp\'ere Equations
Room 204, Center for Continuing Education
- 7:00 a.m.
  Darboux mappings and locally convex surfaces.
  Friedmar Schulz*, University of Iowa
  (856-35-12)
- 7:35 a.m.
  Maximum principles and applications.
  I. Bakelman*, Texas A\thsp\&\thsp M University, College Station
  (856-35-72)
- 8:10 a.m.
  Generalized convex hypersurfaces.
  Erwin Lutwak*, Polytechnic University of New York
  (856-52-60)
- 8:45 a.m.
  Worn stones -- a second look.
  Wm. J. Firey*, Oregon State University
  (856-52-45)
- 9:20 a.m.
  The inhomogeneous extremal metric problem for closed surfaces.
  Eugenio Calabi*, University of Pennsylvania
  (856-53-68)

Friday March 23, 1990, 7:00 a.m.-8:50 a.m.
Special Session on Combinatorics, I
Room 405, Center for Continuing Education
- 7:00 a.m.
  Finite descriptions of tree ideals.
  Neil Robertson*, Ohio State University, Columbus
  P. D. Seymour, Bell Communication Research
  Robin Thomas, Georgia Institute of Technology
  (856-05-125)
- 7:40 a.m.
  An included minor result for 3-connected graphs.
  Bogdan Oporowski*, Louisiana State University, Baton Rouge
  James Oxley, Louisiana State University, Baton Rouge
  (856-05-32)
- 8:20 a.m.
  A characterization of the planar graphs with no 6-wheel minor.
  Bradley S. Gubser*, Louisiana State University, Baton Rouge
  (856-05-98)

Friday March 23, 1990, 8:00 a.m.-8:30 a.m.
Session on Banach Lattices and Theory of Determinates
Room 406, Center for Continuing Education
- 8:00 a.m.
  Sums of homomorphisms into Dedekind complete Banach lattices.
  David C. Carothers*, Hope College
  William A. Feldman, University of Arkansas, Fayetteville
  (856-47-127)
- 8:20 a.m.
  The value of certain determinants with elements _+1.
  Dale Woods*, Central State University
  D. J. Boyce, Central State University
  (856-15-100)

Friday March 23, 1990, 10:00 a.m.-11:00 a.m.
Invited Address
Phase-type distributions: Basic properties.
Room 107, Center for Continuing Education
Marcel F. Neuts*, University of Arizona
(856-90-16)

Friday March 23, 1990, 12:00 p.m.-1:00 p.m.
Invited Address
Selected nonlinear problems in geometry.
Room 204, Center for Continuing Education
Vladimir I. Oliker*, Emory University
(856-53-50)

Friday March 23, 1990, 1:10 p.m.-3:35 p.m.
Special Session on Banach Algebras, II
Room 411, Center for Continuing Education
- 1:10 p.m.
  Multipliers of weighted L^p spaces.
  Peter A. Detre*, Southwest Missouri State University
  (856-47-36)
- 1:40 p.m.
  Compact endomorphisms of Banach algebras.
  Herbert Kamowitz*, University of Massachusetts, Boston
  (856-46-112)
- 2:10 p.m.
  Semi-simple Banach algebras and super-decomposable operators.
  Michael M. Neumann*, Mississippi State University
  (856-47-128)
- 2:40 p.m.
  Informal Discussion

Friday March 23, 1990, 1:10 p.m.-5:00 p.m.
Special Session on Semigroups in Geometry and Analysis, I
Room 409, Center for Continuing Education
- 1:10 p.m.
  The duality between subsemigroups of Lie groups and monotone functions.
  Karl-Hermann Neeb*, Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-07)
- 1:50 p.m.
  On the geometry of subsemigroups of Lie groups.
  Wolfgang A. F. Ruppert*, Universit\"at f\`ur Bodenkultur, Austria and Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-02)
- 2:30 p.m.
  On the set of compact subgroups of a locally compact group.
  Christian Terp*, Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-03)
- 3:10 p.m.
  On topological semigroups of conal curves and connecting homotopy.
  Wolfgang Weiss*, Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-08)
- 3:50 p.m.
  Causality and homothetic maps on space-time.
  Paul Ehrlich*, University of Florida
  (856-53-15)
- 4:30 p.m.
  Applications of differentiable semigroups in operator theory.
  J. P. Holmes*, Auburn University, Auburn
  (856-20-39)

Friday March 23, 1990, 1:10 p.m.-3:00 p.m.
Special Session on Complex Function Theory of One and Several Variables, II
Room 402, Center for Continuing Education
- 1:10 p.m.
  Robin functions and energy functionals of multiply connected domains.
  P. L. Duren*, University of Michigan, Ann Arbor
  M. M. Schiffer, Stanford University
  (856-30-65)
- 1:50 p.m.
  Schwarzian derivatives and zeros of solutions of second order linear differential equations.
  A. Hinkkanen*, University of Texas, Austin
  John Rossi, Virginia Polytechnic Institute and State University
  (856-30-92)
- 2:30 p.m.
  Harmonic analysis on domains.
  Steven G. Krantz*, Washington University
  (856-42-27)

Friday March 23, 1990, 1:10 p.m.-4:10 p.m.
Special Session on Phase-type Distributions and Some Applications, II
Room 107, Center for Continuing Education
- 1:10 p.m.
  Phase-type distributions: Use in queuing models.
  Marcel F. Neuts*, University of Arizona
  (856-90-17)
- 2:10 p.m.
  A finite capacity polling system with non-exhaustive service and non-renewal input.
  C. Blondia*, Philips Research Laboratory, Belgium
  (856-90-47)
- 2:50 p.m.
  ML estimation of the parameters of a PH-distribution in triangular canonical form.
  Andrea Bobbio*, Istituto Elettrotecnico Nazionale Galileo Ferraris, Italy
  Aldo Cumani, Istituto Elettrotecnico Nazionale Galileo Ferraris, Italy
  (856-90-48)
- 3:30 p.m.
  Informal Discussion

Friday March 23, 1990, 1:10 p.m.-5:45 p.m.
Special Session on Geometry, Physics and Nonlinear PDE's, II: Mean curvature--Harmonic maps--Curvature evolution
Room 204, Center for Continuing Education
- 1:10 p.m.
  Surfaces of constant mean curvature of Enneper type.
  Henry C. Wente*, University of Toledo
  (856-53-76)
- 1:45 p.m.
  A survey of some unusual harmonic maps from the 3-ball to the 2-sphere.
  Robert Hardt*, Rice University
  (856-49-67)
- 2:20 p.m.
  A priori estimates for a class of problems from nonlinear elasticity.
  Patricia Bauman, Purdue University, West Lafayette
  Nicholas Owen, University of Bath, United Kingdom
  Daniel Phillips*, Purdue University, West Lafayette
  (856-35-28)
- 2:55 p.m.
  On the size of the blowup set for a quasilinear parabolic equation.
  Michael E. Gage*, University of Rochester
  (856-35-54)
- 3:30 p.m.
  On the structure of complete embedded constant mean curvature surfaces in Euclidean space.
  Nicholas J. Korevaar*, University of Utah
  (856-53-57)
- 4:05 p.m.
  Almost umbilic submanifolds.
  R. Howard*, University of South Carolina, Columbia
  (856-53-58)
- 4:40 p.m.
  On the parabolic harmonic map equation from non-compact manifolds.
  G. Liao*, University of Texas, Arlington
  L. F. Tam, The Chinese University of Hong Kong, Hong Kong
  (856-53-78)
- 5:15 p.m.
  Rotational mean curvature flow, quenching and blow up.
  Bernhard Kawohl*, Universit\"at Heidelberg, Federal Republic of Germany
  (856-35-35)

Friday March 23, 1990, 1:10 p.m.-3:00 p.m.
Special Session on Combinatorics, II
Room 405, Center for Continuing Education
- 1:10 p.m.
  Bounds for rectilinear crossing numbers.
  Daniel Bienstock, Bellcore, Morristown, New Jersey
  Nathaniel Dean*, Bellcore, Morristown, New Jersey
  (856-05-44)
- 1:50 p.m.
  Generalized total colorings.
  Hugh Hind*, University of Southern Mississippi
  (856-05-126)
- 2:30 p.m.
  Coclosure operators and chromatic polynomials.
  Nigel Ray, University of Manchester, England
  William Schmitt*, Memphis State University
  (856-05-34)

Friday March 23, 1990, 1:10 p.m.-3:20 p.m.
Special Session on Differential Geometry, I
Room 404, Center for Continuing Education
- 1:10 p.m.
  (-1/4)-pinched Riemannian metrics on compact Kaehler manifolds.
  Fangyang Zheng*, Massachusetts Institute of Technology
  (856-53-120)
- 1:55 p.m.
  L_2-barred partial-cohomology of projective varieties.
  William Pardon*, Duke University
  Mark Stern, Duke University
  (856-58-118)
- 2:40 p.m.
  Kahler-Einstein metrics of positive scalar curvature.
  Alan M. Nadel*, Massachusetts Institute of Technology
  (856-32-86)

Friday March 23, 1990, 1:10 p.m.-5:00 p.m.
Special Session on Singular Integral Operators and Related Areas, I
Room 403, Center for Continuing Education
- 1:10 p.m.
  Continuity properties of pseudodifferential operators and other operators with singular kernels.
  Rodolfo H. Torres*, Washington University
  (856-35-89)
- 1:50 p.m.
  Weighted inequalities for averaging operators.
  Kenneth F. Andersen*, University of Alberta
  (856-42-63)
- 2:30 p.m.
  Oscillatory integrals with polynomial phase.
  Dan Oberlin*, Florida State University
  (856-42-64)
- 3:10 p.m.
  On the approximation problem for barred partial^2.
  James L. Wang*, University of Alabama, Tuscaloosa
  (856-30-80)
- 3:50 p.m.
  Projection theorems for estimating harmonic measure.
  Peter M. Knopf*, Pace University
  (856-32-123)
- 4:30 p.m.
  Estimates for the maximal operator of the Ornstein-Uhlenbeck semigroup.
  Cristian E. Guti\'errez*, Temple University, Philadelphia
  Wilfredo O. Urbina, Universidad Central de Venezuela, Caracas
  (856-42-113)

Saturday March 24, 1990

Saturday March 24, 1990, 7:00 a.m.-9:30 a.m.
Special Session on Banach Algebras, III
Room 411, Center for Continuing Education
- 7:00 a.m.
  Remarks on the approximation property.
  P. G. Casazza, University of Missouri, Columbia
  N. J. Kalton*, University of Missouri, Columbia
  (856-46-38)
- 7:40 a.m.
  The second conjugate algebra of L_1(G) of a locally compact group.
  Anthony To-Ming Lau*, University of Alberta
  (856-43-102)
- 8:20 a.m.
  Spectral algebras.
  Theodore W. Palmer*, University of Oregon
  (856-46-91)
- 9:00 a.m.
  Decompositions of commutative Banach algebras as semi-direct products and other structure results.
  Marc P. Thomas*, California State University, Bakersfield
  (856-46-09)

Saturday March 24, 1990, 7:00 a.m.-9:30 a.m.
Special Session on Semigroups in Geometry and Analysis, II
Room 409, Center for Continuing Education
- 7:00 a.m.
  Positive definite and negative definite functions on the Heisenberg group.
  Palle E. T. Jorgensen*, University of Iowa
  (856-47-01)
- 7:40 a.m.
  On the semigroup (expiW)G.
  Norbert D\"orr*, Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-06)
- 8:20 a.m.
  Classification of Lie semialgebras.
  Anselm Eggert*, Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-04)
- 9:00 a.m.
  Classification of hyperplane subalgebras in real Lie algebras.
  Karl H. Hofmann*, Technische Hochschule Darmstadt, Federal Republic of Germany
  (856-22-05)

Saturday March 24, 1990, 7:00 a.m.-9:30 a.m.
Special Session on Complex Function Theory of One and Several Variables, III
Room 402, Center for Continuing Education
- 7:00 a.m.
  The minimum points of the hyperbolic metric in plane domains.
  Marius Overholt*, University of Tennessee, Knoxville
  (856-30-103)
- 7:40 a.m.
  Calderon Toeplitz operators.
  Krzysztof Nowak, Washington University
  Richard Rochberg*, Washington University
  (856-46-101)
- 8:20 a.m.
  Polynomial hulls and analytic motions.
  Zbigniew Slodkowski*, University of Illinois, Chicago
  (856-32-85)
- 9:00 a.m.
  Equivalence of regularity for the Bergman projection and the barred partial-Neumann operator.
  Harold P. Boas, Texas A\thsp\&\thsp M University, College Station
  Emil J. Straube*, Texas A\thsp\&\thsp M University, College Station
  (856-32-94)

Saturday March 24, 1990, 7:00 a.m.-9:50 a.m.
Special Session on Phase-type Distributions and Some Applications, III
Room 107, Center for Continuing Education
- 7:00 a.m.
  Observable and unobservable aspects of Markov models.
  Colm O'Cinneide*, Louisiana State University, Baton Rouge
  (856-90-23)
- 7:40 a.m.
  On multivariate phase type distributions.
  Ushio Sumita*, University of Rochester
  (856-90-22)
- 8:20 a.m.
  Computer solution of stochastic models.
  Kishor Trivedi*, Duke University
  (856-90-20)
- 9:00 a.m.
  Phase-type distributions: In the construction of point processes.
  Marcel F. Neuts*, University of Arizona
  (856-90-18)

Saturday March 24, 1990, 7:00 a.m.-9:50 a.m.
Special Session on Geometry, Physics and Nonlinear PDE's, III: Curvature and geometry
Room 204, Center for Continuing Education
- 7:00 a.m.
  Null directions and curvature.
  John K. Beem*, University of Missouri, Columbia
  Phillip E. Parker, Wichita State University
  (856-53-53)
- 7:35 a.m.
  Causal and geodesic behavior of gravitational plane waves.
  P. Ehrlich*, University of Florida
  G. Emch, University of Florida
  G. Galloway, University of Miami
  (856-53-13)
- 8:10 a.m.
  Riemannian metrics on fiber bundles.
  Gary R. Jensen*, Washington University
  Marco Rigoli, Citta Universitaria, Italy
  (856-53-33)
- 8:45 a.m.
  Contact Riemannian three-manifolds.
  Samuel I. Goldberg*, University of Illinois, Urbana-Champaign
  (856-53-71)
- 9:20 a.m.
  A geometric estimate for the index of an umbilic on a smooth surface.
  Frederico Xavier*, University of Notre Dame
  (856-53-14)

Saturday March 24, 1990, 7:00 a.m.-8:50 a.m.
Special Session on Combinatorics, III
Room 405, Center for Continuing Education
- 7:00 a.m.
  Matchings in regular graphs.
  M. D. Plummer*, Vanderbilt University
  (856-05-62)
- 7:40 a.m.
  The maximum value of the principal eigenvalue of a planar graph.
  B. N. Boots, Wilfrid Laurier University
  Gordon F. Royle*, Vanderbilt University
  (856-05-88)
- 8:20 a.m.
  On quasi-threshold graphs.
  W. D. Wallis*, Southern Illinois University, Carbondale
  (856-05-42)

Saturday March 24, 1990, 7:00 a.m.-9:30 a.m.
Special Session on Singular Integral Operators and Related Areas, II
Room 403, Center for Continuing Education
- 7:00 a.m.
  Bounded point evaluations.
  Tavan T. Trent*, University of Alabama, Tuscaloosa
  (856-47-81)
- 7:40 a.m.
  Cauchy integrals on terrible curves.
  J. Michael Wilson*, University of Vermont
  (856-42-74)
- 8:20 a.m.
  Littlewood-Paley theory on spaces of homogenous type.
  Bj\"orn Jawerth*, University of South Carolina, Columbia
  (856-46-121)
- 9:00 a.m.
  Singular integral operators and Hardy spaces.
  John Gilbert*, University of Texas, Austin
  (856-42-46)

Saturday March 24, 1990, 7:30 a.m.-9:50 a.m.
Special Session on Algebraic Geometry, I
Room 410, Center for Continuing Education
- 7:30 a.m.
  The Hodge decomposition for smooth quasi-projective varieties.
  Donu Arapura*, Purdue University, West Lafayette
  (856-14-105)
- 8:00 a.m.
  Obstructions for deformations of singularities.
  Jan Stevens*, University of Utah
  (856-32-97)
- 8:30 a.m.
  The Artin smoothing problem and the approximation theorems.
  Mark Spivakovsky*, Harvard University
  (856-13-119)
- 9:00 a.m.
  The structure of small resolutions.
  Sheldon Katz, Oklahoma State University, Stillwater
  David R. Morrison*, Duke University
  (856-14-90)
- 9:30 a.m.
  Donaldson's polynomials of surfaces in P^3.
  Kieran O'Grady*, Columbia University
  (856-14-95)

Saturday March 24, 1990, 10:00 a.m.-11:00 a.m.
Invited Address
A geometric trace formula for Hecke operators.
Room 204, Center for Continuing Education
Mark A. Stern*, Institute for Advanced Study
(856-58-51)

Saturday March 24, 1990, 12:00 p.m.-1:00 p.m.
Invited Address
Topology and geometry of isolated complex surface singularities.
Room 204, Center for Continuing Education
Jonathan Wahl*, University of North Carolina, Chapel Hill
(856-14-122)

Saturday March 24, 1990, 1:10 p.m.-4:20 p.m.
Special Session on Semigroups in Geometry and Analysis, III
Room 409, Center for Continuing Education
- 1:10 p.m.
  Product integrals in differentiable groupoids with multiplication strongly differentiable at the identity.
  Mitchell J. Anderson*, University of Hawaii, Hilo
  (856-22-106)
- 1:50 p.m.
  Compact uniquely divisible matrix semigroups.
  Dennison R. Brown, University of Houston, Houston
  James W. Stepp*, University of Houston, Houston
  (856-22-99)
- 2:30 p.m.
  The lattice of principal ideals of a linear algebraic monoid.
  Mohan S. Putcha*, North Carolina State University
  (856-20-87)
- 3:10 p.m.
  Infinitesimal bisimple bases and transitive representations of inverse semigroups.
  Boris M. Schein*, University of Arkansas, Fayetteville
  (856-20-107)
- 3:50 p.m.
  Multiplicative semigroups of infinite dimensional matrices.
  Arunava Mukherjea*, University of South Florida
  (856-15-73)

Saturday March 24, 1990, 1:10 p.m.-4:00 p.m.
Special Session on Phase-type Distributions and Some Applications, IV
Room 107, Center for Continuing Education
- 1:10 p.m.
  A finite capacity dynamic priority queueing model with phase type services.
  S. Chakravarthy*, GMI Engineering and Management Institute, Flint, Michigan
  (856-90-49)
- 1:50 p.m.
  Must matrix representations of distributions be restricted to phase type?
  Lester Lipsky*, University of Connecticut, Storrs
  (856-90-108)
- 2:30 p.m.
  The moment problem for continuous distributions.
  Appie van de Liefvoort*, University of Missouri, Kansas City
  (856-90-109)
- 3:10 p.m.
  Phase-type distributions: Asymptotic results.
  Marcel F. Neuts*, University of Arizona
  (856-90-19)

Saturday March 24, 1990, 1:10 p.m.-6:20 p.m.
Special Session on Geometry, Physics and Nonlinear PDE's, IV: Eigenvalues--Scalar curvature
Room 204, Center for Continuing Education
- 1:10 p.m.
  The local structure of Riemannian manifolds.
  Patrick Ghanaat, Swiss Federal Institute of Technology, Switzerland
  Maung Min-oo, McMaster University
  Ernst A. Ruh*, Ohio State University, Columbus
  (856-53-37)
- 1:45 p.m.
  Conformal deformation equation and isospectral set of conformal metrics.
  Sun-Yung A. Chang, University of California, Los Angeles
  Paul C. Yang*, University of Southern California
  (856-53-59)
- 2:20 p.m.
  Prescribed curvature and singularities of conformal metrics on Riemann surfaces.
  Robert C. McOwen*, Northeastern University
  (856-35-61)
- 2:55 p.m.
  Conformal deformation of metrics to constant mean curvature.
  Jos\'e F. Escobar*, University of Chicago
  (856-53-31)
- 3:30 p.m.
  Spherical minimal immersions of spherical space forms.
  Dennis DeTurck*, University of Pennsylvania
  (856-53-77)
- 4:05 p.m.
  The changing geometry of isospectral manifolds.
  Dennis DeTurck, University of Pennsylvania
  Herman Gluck, University of Pennsylvania
  Carolyn Gordon*, Washington University
  David Webb, Washington University
  (856-53-30)
- 4:40 p.m.
  Domains in Riemannian manifolds and inverse spectral geometry.
  Harold Donnelly, Purdue University, West Lafayette
  Jeffrey Lee*, Purdue University, West Lafayette
  (856-53-55)
- 5:15 p.m.
  A class of nonlinear partial differential systems with geometric applications.
  S. Walter Wei*, University of Oklahoma
  (856-53-69)
- 5:50 p.m.
  On the index of the Costa-Hoffan-Meeks minimal surface.
  Peter Li, University of Arizona
  Luen-Fai Tam, The Chinese University of Hong Kong, Hong Kong
  Frank Stenger, University of Utah
  Andrejs E. Treibergs*, University of Utah
  (856-53-52)

Saturday March 24, 1990, 1:10 p.m.-3:40 p.m.
Special Session on Combinatorics, IV
Room 405, Center for Continuing Education
- 1:10 p.m.
  On integrity of matroids.
  Safwan Akkari*, Indiana University-Purdue University, Fort Wayne
  (856-05-43)
- 1:50 p.m.
  The binary matroids having an element in every 4-wheel minor.
  Talmage James Reid*, University of Mississippi
  (856-05-111)
- 2:30 p.m.
  On minors avoiding elements in matroids.
  James G. Oxley*, Louisiana State University, Baton Rouge
  (856-05-83)
- 3:10 p.m.
  On the intersection rank of strongly regular graphs.
  James A. Wiseman*, Southern Illinois University, Carbondale
  (856-05-124)

Saturday March 24, 1990, 1:15 p.m.-4:05 p.m.
Special Session on Algebraic Geometry, II
Room 410, Center for Continuing Education
- 1:15 p.m.
  Orbits of the action of PGL(3) on spaces of plane curves.
  Paolo Aluffi*, Oklahoma State University, Stillwater
  (856-14-104)
- 1:45 p.m.
  Birational mappings between hypersurfaces of degree M in P^M.
  Bruce Crauder*, Oklahoma State University, Stillwater
  (856-14-93)
- 2:15 p.m.
  Cremona transformations and syzygies.
  Sheldon Katz*, Oklahoma State University, Stillwater
  Klaus Hulek, Universitaet Bayreuth, Federal Republic of Germany
  Frank Schreyer, Universitaet Bayreuth, Federal Republic of Germany
  (856-14-96)
- 2:45 p.m.
  Hilbert functions of points in good position in P^2.
  Brian Harbourne*, University of Nebraska, Lincoln
  (856-14-110)
- 3:15 p.m.
  On set-theoretic complete intersections in complex projective space.
  David B. Jaffe*, University of Nebraska, Lincoln
  (856-14-66)
- 3:45 p.m.
  Some recent results on the Gaussian map for curves.
  Rick Miranda*, Colorado State University
  (856-14-116)

Saturday March 24, 1990, 1:15 p.m.-4:10 p.m.
Special Session on Differential Geometry, II
Room 404, Center for Continuing Education
- 1:15 p.m.
  Index theory on homogeneous spaces.
  Jeffrey Fox, University of Colorado, Boulder
  Peter Haskell*, Virginia Polytechnic Institute and State University
  (856-46-41)
- 2:00 p.m.
  Curvature measures of subanalytic sets.
  Joseph H. G. Fu*, Indiana University, Bloomington
  (856-32-29)
- 2:45 p.m.
  Some aspects of analysis on locally symmetric spaces of finite volume.
  Werner Muller*, Institute for Advanced Study
  (856-53-114)
- 3:30 p.m.
  Results of integrality of characteristic numbers.
  Sai Kee Yeung*, Massachusetts Institute of Technology
  (856-53-117)