Joint Mathematics Meetings Program by Day
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Program 
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Inquiries: meet@ams.org
1993 Joint Mathematics Meetings
San Antonio, TX, January 1316, 1993
Meeting #878
Associate secretaries:
W Wistar Comfort, AMS wcomfort@wesleyan.edu
Kenneth A Ross, MAA ross@math.uoregon.edu
Thursday January 14, 1993

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMSMAA Special Session on Mathematics and Education Reform, III

8:00 a.m.
Mathematicians and primary grade teachers need each other.
Patricia Clark Kenschaft*, Montclair State College
(87896335)

8:30 a.m.
A case study in mathematics education reform: The Arkansas mathematics crusade.
Calvin Piston*, John Brown University
(87898259)

9:00 a.m.
Exploring creative mathematics with high school students and teachers.
Glenn Stevens*, Boston University
(87897465)

9:30 a.m.
Faculty development at a large research university: We changed the culture by delta, now where's the epsilon?.
Pat Shure*, University of Michigan, Ann Arbor
(87898534)

10:00 a.m.
Northwestern's integrated science program: An experiment in Math/Science education.
Michael R. Stein*, Northwestern University
(8789882)

10:30 a.m.
A project report about preparation for college teaching.
Bettye Anne Case*, Florida State University
(87898290)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Continuum Theory and Dynamical Systems, III

8:00 a.m.
Periodicity and indecomposability.
W. T. Ingram*, University of Missouri, Rolla
(87854694)

8:30 a.m.
The geometry of laminations.
R. J. Fokkink, Delft University of Technology, Netherlands
L. G. Oversteegen*, University of Alabama, Birmingham
(87854648)

9:00 a.m.
Inverse limits of unimodal interval maps.
Sarah Holte*, University of Missouri, Rolla
(87854281)

9:30 a.m.
Topology of quadratic Julia sets.
John C. Mayer*, University of Alabama, Birmingham
(87830865)

10:00 a.m.
Boundaries of Siegel disks.
James T. Rogers, Jr.*, Tulane University
(87858337)

10:30 a.m.
Knasterlike continua and complex dynamics.
Robert L. Devaney*, Boston University
(8785839)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Combinatorial Methods in Computational Algebraic Geometry, III

8:00 a.m.
The sparse nullstellensatz.
Paul Pedersen*, Cornell University
(87814940)

8:30 a.m.
Algorithms for the QuillenSuslin theorem for monoid rings.
Cynthia Woodburn*, New Mexico State University, Las Cruces
(87814651)

9:00 a.m.
Barycentric coordinates for convex polytopes.
Joe Warren*, Rice University
(87852804)

9:30 a.m.
A convex geometric approach to counting the roots of a polynomial system.
J. Maurice Rojas*, University of California, Berkeley
(87814856)

10:00 a.m.
An efficient algorithm for computing the sparse polynomial resultant.
Ioannis Z. Emiris*, University of California, Berkeley
(87814899)

10:30 a.m.
Homogeneous coordinates for toric varieties.
David A. Cox*, Amherst College
(87814496)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on C*algebras: 19431993 (A 50Year Celebration), III

8:00 a.m.
Notes on the GelfandNeumark theorem.
Richard V. Kadison*, University of Pennsylvania
(8784604)

8:30 a.m.
Discussion

9:00 a.m.
C^*algebras and Mackey's theory of group representations.
Jonathan Rosenberg*, University of Maryland, College Park
(87846239)

9:30 a.m.
C^*algebras and deformation quantization.
Marc A. Rieffel*, University of California, Berkeley
(87846324)

10:00 a.m.
Projections in C^*algebras.
Bruce Blackadar*, University of Nevada
(87846690)

10:30 a.m.
Products of exponentials in C^*algebras.
N. Christopher Phillips*, University of Oregon
(87846462)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Differential Geometry, II

8:00 a.m.
Astigmatic conjugacy and achronal boundaries.
Paul Ehrlich*, University of Florida
Gerard Emch, University of Florida
(87853109)

8:30 a.m.
Spaces of geodesics.
John K. Beem, University of Missouri, Columbia
Robert J. Low, Coventry Polytechnic, United Kingdom
Phillip E. Parker*, Wichita State University
(87853121)

9:00 a.m.
Casuality and Cauchy horizons.
John K. Beem*, University of Missouri
Andrzej Krolak, Polish Academy of Sciences, Poland
(8785319)

9:30 a.m.
Conformally stationary spacetimes. Hausdorff orbit spaces, and the shape of space.
Steven G. Harris*, Saint Louis University
Robert J. Low, Coventry University, United Kingdom
(8785376)

10:00 a.m.
Aspects of Lorentzian Busemann functions.
Gregory J. Galloway*, University of Miami
Arnaldo Horta, University of Miami
(87883923)

10:30 a.m.
Discussion

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Stability and Asymptotic Behavior of Difference Equations, III

8:00 a.m.
Some asymptotic properties of solutions of nonhomogeneous difference equations.
John R. Graef*, Mississippi State University
Paul W. Spikes, Mississippi State University
(87839747)

8:30 a.m.
Riccati techniques for difference systems.
Lynn Erbe*, University of Alberta
(87839470)

9:00 a.m.
Differences between difference equations and differential equations.
John Hooker*, Southern Illinois University, Carbondale
(87839896)

9:30 a.m.
Stability and oscillation in difference equations of infinite order.
Joseph Wiener*, University of TexasPan American
(8783472)

10:00 a.m.
Oscillation, permanence, stability, and periodicity in a genotype selection model.
E. A. Grove*, University of Rhode Island
V. L. Kocic, University of Rhode Island
G. Ladas, University of Rhode Island
R. Levins, Harvard School of Public Health, Massachusetts
(87839542)

10:30 a.m.
Boundedness of delay difference equations.
Shunian Zhang*, Anhui University, China
(87839423)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Topology and Geometry, III

8:00 a.m.
Floppy curves with applications to nonsingualr real algebraic curves.
Patrick M. Gilmer*, Louisiana State University, Baton Rouge
(87857139)

8:30 a.m.
Nonhyperbolic manifolds obtained by Dehn surgery on an hyperbolic knot.
Mario EudaveMu\~noz*, Ciudad University, Mexico
(87857780)

9:00 a.m.
Topological methods to compute ChernSimons invariants.
Dave Auckly*, University of Texas, Austin
(87853906)

9:30 a.m.
Curves in the boundary of a handlebody.
Edith Starr*, Rice University
(87857743)

10:00 a.m.
Least area tori in 3manifolds.
Max NeumannCoto*, University National Autonoma de Mexico, Mexico
(87853634)

10:30 a.m.
Continuity of the Liouville form of metrics of nonpositive curvature.
Sassan Mohseni*, University of Dallas
(87851667)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Model Theory and Algebra, II

8:00 a.m.
Geometries of amalgamated vector spaces.
Kitty Holland*, Simon Fraser University,
(87803422)

8:30 a.m.
Quantifier elimination in wreath products.
Gregory Cherlin*, Rutgers University, New Brunswick
Gary Martin, University of Massachusetts, Dartmouth
(87803346)

9:00 a.m.
Finitely presented right modules over a left puresemisimple ring.
Ivo Herzog*, Brandeis University
(87816333)

9:30 a.m.
Lie algebras of finite Morley rank.
Richard Rosengarten*, New Brunswick, New Jersey
(87803857)

10:00 a.m.
Fields definable in Ominimal expansions of real closed fields.
Anand Pillay*, University of Notre Dame
(87803702)

10:30 a.m.
On reducts of differentially closed fields.
Zeljko M. Sokolovic*, University of Notre Dame
(87803798)

Thursday January 14, 1993, 8:00 a.m.10:50 a.m.
AMS Special Session on Holomorphic Spaces, III

8:00 a.m.
Projected composition operators.
Richard Rochberg*, Washington University
(87846527)

8:30 a.m.
General Carleson measures and similarity of subnormal operators.
James Z. Qiu*, Virginia Polytechnic Institute and State University
(87830198)

9:00 a.m.
On the commutant of Hilbert space operators.
W. R. Wogen*, University of North Carolina, Chapel Hill
(87847240)

9:30 a.m.
On semigroups of operators on Hardy spaces.
J.Cl. Evard, University of Wyoming
F. Jafari*, University of Wyoming
(8784711)

10:00 a.m.
Automorphism invariance of the operatorvalued Poisson transform.
Ra\'ul E. Curto*, University of Iowa
(87847420)

10:30 a.m.
Hilbert space representations of spaces of bounded analytic functions.
Hari Bercovici*, Indiana University, Bloomington
(87847332)

Thursday January 14, 1993, 8:00 a.m.10:00 a.m.
MAA Minicourse \#1: Part B
Alternatives to the lecture method in collegiate mathematics
Organizers:
Julian Weissglass, Mathematical Sciences Education Board

Thursday January 14, 1993, 8:00 a.m.10:00 a.m.
MAA Minicourse \#9: Part A
Earth algebra$:$ College algebra with applications to environmental issues
Organizers:
Christopher Schaufele, Kennesaw State College
Nancy Zumoff, Kennesaw State College

Thursday January 14, 1993, 8:00 a.m.10:55 a.m.
AMS Session on Numerical Analysis and Dynamics

8:00 a.m.
Fast computation of eigenvalues, eigenvectors, and the Schur canonical form.
Jeffrey B. Haag*, Humboldt State University
David S. Watkins, Washington State University
(87865792)

8:15 a.m.
Numerical solutions of differentialalgebraic equations.
MingGong Lee*, University of Redlands
TsungChieh Lin, University of Iowa
(87870603)

8:30 a.m.
Generalapproximationsolvability of nonlinear equations involving Aregular operators.
Ram Verma*, University of Central Florida
(87865180)

8:45 a.m.
A recursive approach to multivariate automatic differentiation.
Dan Kalman*, The Aerospace Corporation, Los Angeles, California
Robert Lindell, The Aerospace Corporation, Los Angeles, California
(87865723)

9:00 a.m.
Generalized rational identities of division rings involving derivations, automorphisms, and antiautomorphisms.
Gordon A. Swain*, University of Massachusetts, Amherst
(87816615)

9:15 a.m.
Some observations for increasing the effectiveness of continuous RungeKutta processes.
Curtis Outlaw, University of New Orleans
Leroy Derr, University of New Orleans
Diran Sarafyan*, University of New Orleans
(87865593)

9:30 a.m.
Distribution of floating point sums.
John K. Scheidt, University of Wisconsin, La Crosse
Charles W. Schelin*, University of Wisconsin, La Crosse
(87865383)

9:45 a.m.
Quadratures for a class of singular integrals.
Javad Abdalkhani*, Ohio State University, Lima
(87865355)

10:00 a.m.
SOR method and singular value decomposition.
Saadat Moussavi*, University of Wisconsin, Oshkosh
(87865545)

10:15 a.m.
The dynamics of piecewise endomorphisms of free monoids.
John Harrison*, State University of New York, Binghamton
(87868932)

10:30 a.m.
Vector fields represented on the Torus and Klein bottle.
Margaret M. LaSalle*, University of Southwestern Louisiana
(87868214)

10:45 a.m.
A sinc method for the numerical solution of Abel integral equations.
Bruce V. Riley*, University of Wisconsin, La Crosse
(87865311)

Thursday January 14, 1993, 8:00 a.m.10:55 a.m.
AMS Session on Optimization, Stability and Uniqueness

8:00 a.m.
Stability for functional differential equations.
Zhivko S. Athanassov*, Bulgarian Academy of Science, Bulgaria
(87834797)

8:15 a.m.
Monotone iterative technique for nonlinear periodic integrodifferential systems with singular coefficients.
Josaphat A. Uvah*, University of West Florida
(87834783)

8:30 a.m.
The standard triple bubble type is the leastperimeter way to enclose three connected areas.
Chris Cox, Northwestern University
Michael Hutchings*, Northwestern University
Lisa Harrison, Northwestern University
Susan Kim, Northwestern University
Janette Light, Northwestern University
Andrew Mauer, Northwestern University
Meg Tilton, Northwestern University
(87849199)

8:45 a.m.
A Lagrange multiplier rule for optimal control and constrained calculus of variation problems.
John Gregory*, Southern Illinois University, Carbondale
Cantian Lin, Southern Illinois University, Carbondale
(87849313)

9:00 a.m.
Integral global optimization of robust discontinuous functions.
Quan Zheng*, Clemson University
(87849683)

9:15 a.m.
Optimal control theory in cancer chemotherapy.
Alireza Farahani*, University of Rhode Island
(87849520)

9:30 a.m.
Group classification and partially invariant solutions for generalized Burgers equations.
S. K. Rai*, University of Arkansas
C. C. A. Sastri, Dalhousie University,
(87835884)

9:45 a.m.
Uniqueness of the Hopf weak solutions of the NavierStokes equations.
T. L. Gill, Howard University
W. W. Zachary*, Howard University
(87835403)

10:00 a.m.
Aprioi estimates and uniqueness of inflection points for positive solutions of semipositone problems.
Joseph A. Iaia*, University of North Texas
(87834318)

10:15 a.m.
Existence and uniqueness of entire function solutions of higher order differential equations.
Ti Jun Xiao, Yunnan Normal University, People's Republic of China
Jin Liang*, Kunming Institute of Technology, People's Republic of China
(87834316)

10:30 a.m.
Asymptotic stability results for a class of singular diffusion problems.
J. B. Garner*, University of Arkansas, Little Rock
R. J. Schilling, University of Arkansas, Little Rock
(87834285)

10:45 a.m.
Restrictive stability results by Lyapunov's second method.
A. S. Vatsala*, University of Southwestern Louisiana
(87834759)

Thursday January 14, 1993, 8:00 a.m.10:55 a.m.
AMS Session on Elementary Number Theory

8:00 a.m.
Lucas' theorem for generalized binomial coefficients.
Diana L. Wells*, University of North Dakota, Grand Forks
(8781135)

8:15 a.m.
On certain digital properties of integers.
Robert E. Kennedy*, Central Missouri State University
Curtis Cooper, Central Missouri State University
(87811795)

8:30 a.m.
On the number of 1's in the sequence of positive integers less than n.
Curtis Cooper*, Central Missouri State University
Robert E. Kennedy, Central Missouri State University
(87811815)

8:45 a.m.
Finite upper half planes are pseudorandom graphs.
Steven C. Poulos*, Xavier University
(87811745)

9:00 a.m.
"Upper" half planes over various fields.
Cynthia E. Trimble*, University of California at San Diego, La Jolla
(87811732)

9:15 a.m.
Finite upper half planes.
Jeffrey P. Angel*, University of California at San Diego, La Jolla
(87811719)

9:30 a.m.
On the density of rational and irrational real numbers.
C. Muses*, Mathematics & Morphology Education and Research Centre, British Columbia, Canada
(87811707)

9:45 a.m.
The Ramanujan number.
Baikunth Prasad Ambasht*,
Jamuna P. Ambasht, Benedict College
(87811388)

10:00 a.m.
On the last factor of period polynomials for finite fields.
Stanley Gurak*, University of San Diego
(87811366)

10:15 a.m.
Infinite products and Fibonacci numbers.
Don Redmond*, Southern Illinois University, Carbondale
(87811662)

10:30 a.m.
Irrational sums.
JauShyong Peter Shiue*, University of Nevada
(87811614)

10:45 a.m.
A number  Theoretic proof concerning algebraic differential equations.
Georg Martin Reinhart*, University of Illinois, Chicago
(87811939)

Thursday January 14, 1993, 8:00 a.m.10:55 a.m.
AMS Session on Partial Differential Equations, II

8:00 a.m.
Headoftheline processor sharing for many symmetric queues with finite capacity.
John A. Morrison*, American Tel & Tel Bell Laboratories
(8783557)

8:15 a.m.
Almost periodic solutions in an integropartial differential equation.
Yoshihiro Hamaya*, University of Texas, Arlington
(87835628)

8:30 a.m.
Blowup of solutions for nonlinear reactiondiffusion systems.
Hongwei Chen*, Christopher Newport Collge
(87835450)

8:45 a.m.
An inverse scattering algorithm for layered, electromagnetically dispersive media.
Thomas M. Roberts*, AL/OEDA, Armstrong Laboratory, Brooks Air Force Base, Texas
(87835773)

9:00 a.m.
Center manifolds for quasilinear reaction diffusion systems.
Gieri Simonett*, University of California, Los Angeles
(87835638)

9:15 a.m.
Some results for a nonlinear system of evolution equations.
Seth F. Oppenheimer*, Mississippi State University
(87835752)

9:30 a.m.
Growth and regularity of solutions of hypoelliptic equations.
Morteza ShafiiMousavi*, Indiana University, South Bend
(87835582)

9:45 a.m.
Recovering the impedance from the transmission data.
T. Maheswaran*, Iowa State University
(87835751)

10:00 a.m.
Asymptotics of weakly nonlinear wave equations.
Chirakkal V. Easwaran*, State University of New York, College at New Paltz
(87835725)

10:15 a.m.
Microstructure models with secondary flux.
John Cook*, University of Texas, Austin
(87835722)

10:30 a.m.
Radial solutions to a problem with jumping nonlinearities.
Alfonso Castro*, University of North Texas
(87835717)

10:45 a.m.
Branches of radial solutions for semipositone problems.
Alfonso Castro, University of North Texas
Sudhasree Gadam, University of North Texas
R. Shivaji*, Mississippi State University
(87835650)

Thursday January 14, 1993, 8:00 a.m.9:45 a.m.
MAA Session on Assessment Programs for the Undergraduate Major, II

8:00 a.m.
Assessing majors through a capstone course.
Charles F. Peltier*, St. Mary's College
(878001006)

8:25 a.m.
Assessment at Hood College.
M. Elizabeth Mayfield*, Hood College
(878001003)

8:50 a.m.
Mathematics as a part of common evaluation across the sciences.
Roger Nelson*, Ball State University
(878001004)

9:15 a.m.
Open discussion of issues raised regarding assessment

Thursday January 14, 1993, 8:00 a.m.10:40 a.m.
MAA Session on Interactive Learning Environments, II

8:00 a.m.
Yet one more innovative approach to calculus.
Gary A. Harris*, Texas Tech University
(878001078)

8:15 a.m.
Cooperative learning in a computerized classroom.
G. Daniel Callon*, Franklin College
(878001075)

8:30 a.m.
Cooperative learning in a mathematics course for prospective elementary teachers.
Jane F. Schielack*, Texas A\thsp\&\thsp M University, College Station
(878001088)

8:45 a.m.
Calculus for chemists  A short course.
James M. Sobota*, University of Wisconsin, La Crosse
(878001090)

9:00 a.m.
Female students react to collaborative learning.
Janet Andersen*, Hope College
(878001070)

9:15 a.m.
A study of mathematics classes with computer and noncomputer laboratories.
Wendy Coulombe, North Carolina State University
David Mathews*, Longwood College
(878001082)

9:30 a.m.
The effect of the graphing calculator on female students cognitive levels and spatial visualization.
Mary Margaret ShoafGrubbs*, College of New Rochelle
(878001089)

9:45 a.m.
How to develop and assess cooperative learning activities in mathematics.
Regina Baron Brunner*, Cedar Crest College
(878001074)

10:00 a.m.
An independent integrated calculus laboratory.
Vivian Kraines*, Meredith College
(878001080)

10:15 a.m.
Algebra applications for lotus: Linear.
Roosevelt Gentry*, Jackson State University
(878001077)

10:30 a.m.
The use of conjectures in cooperative learning.
Joe Yanik*, Emporia State University
(878001092)

Thursday January 14, 1993, 8:00 a.m.10:35 a.m.
MAA Session on Use of Visualization in the Teaching of Mathematics, I

8:00 a.m.
Mathematica in the classroom.
Stan Wagon*, Macalester College
(878001187)

8:15 a.m.
Some visual experiences with the TI85 and the Harvard Consortium Calculus.
John F. Lucas*, University of Wisconsin, Oshkosh
(878001174)

8:30 a.m.
The effect of the graphing calculator on female students' cognitive levels and spatial visualization.
Mary Margaret ShoafGrubbs*, College of New Rochelle
(878001181)

8:45 a.m.
Algebra tutorial for excel spreadsheet: Advanced.
Roosevelt Gentry*, Jackson State University
(878001170)

9:10 a.m.
Teaching ordinary differential equations using computer software.
Mahmoud M. Fath ElDen*, Fort Hays State University
(878001168)

9:25 a.m.
Using visualization to promote understanding of solutions to first order ordinary differential equations.
Lila Roberts*, Georgia Southern University
Frank Purcell, MathSoft, Inc., Cambridge, Masachusetts
(878001178)

9:40 a.m.
An introduction to the vibrating spring using PHASER.
Mark Farris*, Midwestern State University
(878001167)

9:55 a.m.
Euclid's (Gaussian) algorithm: A lattice approach.
Steve Benson*, Santa Clara University
(878001163)

10:10 a.m.
Visualizing the chain rule and a neural network application.
Raul Rojas*, Free University of Berlin, Germany
(878001179)

10:25 a.m.
Critical thinking and teaching with DERIVE.
Tingxiu Wang*, Oakton Community College
(878001188)

Thursday January 14, 1993, 8:00 a.m.9:20 a.m.
MAA Committee on Mathematicians Outside Academia Panel Discussion
Mathematical life outside academia$:$ Common problems, goals and solutions

Thursday January 14, 1993, 8:00 a.m.9:50 a.m.
SUMMA Workshop
Intervention projects for minority precollege students

Thursday January 14, 1993, 8:15 a.m.10:55 a.m.
AMS Session on Semigroups, et al

8:15 a.m.
Conjugacy in groups of alternating links.
Karin Johnsgard*, University of Illinois, UrbanaChampaign
(87820196)

8:30 a.m.
Endomorphism nearrings of pgroups generated by the automorphisms and inner automorphism groups.
Gary L. Peterson*, James Madison University
(87820256)

8:45 a.m.
Matrices as products of involutions.
Francis A. Arlinghaus*, Youngstown State University
(87820920)

9:00 a.m.
Mutually interassociative semigroups.
Sheri J. Boyd*, Vanderbilt University
Matthew Gould, Vanderbilt University
(87820867)

9:15 a.m.
Lattice isomorphism.
Kazem Mahdavi*, State University of New York, College at Potsdam
John Poland, Carleton University
(8782077)

9:30 a.m.
The congruence extension property, the ideal extension property, and ideal semigroups.
Karen Dommert Aucoin*, Louisiana State University, Baton Rouge
(8782075)

9:45 a.m.
The congruence extension property for completely simple semigroups.
Jill A. Dumesnil*, Louisiana State University, Baton Rouge
(8782074)

10:00 a.m.
A qanalogue of the Coxeter complex.
Andrew Mathas*, University of Illinois, Chicago
(87820642)

10:15 a.m.
Inverse monoids of dotdepth two.
D. Cowan*, University of Lethbridge
(87820686)

10:30 a.m.
Representations of right quasigroups.
T. S. R. Fuad*, Iowa State University
(87820698)

10:45 a.m.
On the determination of commutative semigroups by their inverse semigroups of partial automorphisms.
Shu Zhang*, University of Arizona
(87820613)

Thursday January 14, 1993, 8:15 a.m.10:55 a.m.
AMS Session on Probability, II

8:15 a.m.
Convergence of stochastic delay iterative processes.
G. S. Ladde*, University of Texas, Arlington
(87860543)

8:30 a.m.
Wiener distributions and stochastic calculus.
Mylan Redfern*, University of Southern Mississippi
(87860472)

8:45 a.m.
Quantum field path integrals and the JohnsonKallianpur formula.
David Betounes*, University of Southern Mississippi
(87860460)

9:00 a.m.
Analytic conditions for Lyopounov functions on countable Markov chains.
Mitchell Kotler*, University of Massachusetts, Amherst
(87860617)

9:15 a.m.
Potential operators for some class of Markov processes.
Mikhail Novikov*, Western Kentucky University
(87860585)

9:30 a.m.
Locally harmonizable random fields.
Randall J. Swift*, Western Kentucky University
(87860583)

9:45 a.m.
The symmetry group of a full probability measure.
Mark M. Meerschaert*, Michigan State University
Jerry Alan Veeh, Auburn University, Auburn
(87860775)

10:00 a.m.
Hyperfinite representation of Brownian meander.
Vesna MusickiKovacevic*, University of Iowa
(87860755)

10:15 a.m.
Generalized Feynman integrals via conditional Feynman integrals.
Dong Chung, Sogang University, Korea
Chull Park, Miami University, Oxford
David Skoug*, University of Nebraska, Lincoln
(8786080)

10:30 a.m.
An operatorvalued YehWiener integral, and a KacFeynman Wiener integral equation.
Chull Park*, Miami University, Oxford
David L. Skoug, University of Nebraska, Lincoln
(87860231)

10:45 a.m.
Stochastic boundary value problems.
G. S. Ladde, University of Texas, Arlington
M. Sambandham*, Clark Atlanta University
(87860710)

Thursday January 14, 1993, 9:00 a.m.9:50 a.m.
AWM Emmy Noether Lecture
Hyperbolic geometry and spaces of Riemann surfaces.
Linda Keen*, Lehman College

Thursday January 14, 1993, 9:00 a.m.10:50 a.m.
AMS Special Session on History of Mathematics, II

9:00 a.m.
Mathematical physics and the American mathematical community between the wars.
Loren J. Butler*, University of Chicago
(87801280)

9:40 a.m.
Cox, Woodard and Claytor: Three early African American Mathematicians.
J. A. Donaldson*, Howard University
(87801622)

10:20 a.m.
The origins of an interpolation formula.
J. J. Tattersall*, Providence College
(87801155)

Thursday January 14, 1993, 9:30 a.m.10:55 a.m.
MAA Panel Discussion
Reflections on ICME\endash 92

Thursday January 14, 1993, 10:05 a.m.10:55 a.m.
MAA Invited Address
Processing our image of minorities in mathematics.
Sylvia T. Bozeman*, Spelman College
(87800961)

Thursday January 14, 1993, 11:10 a.m.12:00 p.m.
AMSMAA Invited Address
Ramanujan, the lost notebook and I.
George E. Andrews*, Pennsylvania State University, University Park
(87800950)

Thursday January 14, 1993, 12:00 p.m.1:00 p.m.
National Science Foundation Informal Discussion Group

Thursday January 14, 1993, 1:00 p.m.2:00 p.m.
Colloquium Lectures: Lecture II
Nonlinear differential equations and Lagrangian coordinates.
Luis A. Caffarelli*, Institute for Advanced Study

Thursday January 14, 1993, 2:15 p.m.3:05 p.m.
AMS Invited Address
Sparse systems of polynomial equations.
Bernd Sturmfels*, Cornell University
(87800958)

Thursday January 14, 1993, 2:15 p.m.4:05 p.m.
AMS Special Session on History of Mathematics, III

2:15 p.m.
The roots of commutative algebra in algebraic number theory.
Israel Kleiner*, York University
(8780120)

3:00 p.m.
Hardy and mathematical realism.
Thomas Drucker*, University of Wisconsin, Madison
(87801576)

3:30 p.m.
F. Riesz's main period of functionalanalytic work.
Erwin O. Kreyszig*, Carleton University
(8780108)

Thursday January 14, 1993, 2:15 p.m.4:35 p.m.
AMS Special Session on Small Divisor Problems in Nonlinear Analysis, II

2:15 p.m.
Small denominators in partial differential equations.
Clarence Eugene Wayne*, Pennsylvania State University, University Park
(87858677)

2:45 p.m.
Resolving some small divisor problems via Sobolev spaces and the calculus of variations.
M. S. Berger*, University of Massachusetts, Amherst
(87834132)

3:15 p.m.
An approach to the study of the breakup of invariant curves.
John N. Mather*, Princeton University
(87834412)

3:45 p.m.
Discussion

Thursday January 14, 1993, 2:15 p.m.4:05 p.m.
AMS Special Session on Differential Geometry, III

2:15 p.m.
Harmonic deformations.
BangYen Chen*, Michigan State University
(8785342)

2:45 p.m.
Some low type submanifolds of projective spaces.
Ivko Dimitric*, Pennsylvania State University, Uniontown
(87853376)

3:15 p.m.
Variational problems on contact manifolds.
Shangrong Deng*, Southern College of Technology
(87853343)

3:45 p.m.
A solution of Ambrose's problem in dimension two.
James J. Hebda*, Saint Louis University
(8785325)

Thursday January 14, 1993, 2:15 p.m.4:05 p.m.
AMS Special Session on Model Theory and Algebra, III

2:15 p.m.
Two dimensional rigid subanalytic sets.
Leonard Lipshitz*, Purdue University, West Lafayette
Zachary Robinson, Purdue University, West Lafayette
(87803499)

2:45 p.m.
Limit sets of definable families.
Lou van den Dries*, University of Illinois, UrbanaChampaign
(87803835)

3:15 p.m.
Defining exponential and power functions in Ominimal structures.
Chris Miller*, University of Illinois, UrbanaChampaign
(87803349)

3:45 p.m.
Specializations in spaces of padic types.
Luc Belair*, University of Quebec
(87803449)

Thursday January 14, 1993, 2:15 p.m.4:05 p.m.
AMS Special Session on Low Dimensional Geometric Dynamical Systems, I

2:15 p.m.
Infinite cascades of braids and smooth dynamical systems.
JeanMarc Gambaudo, University of Nice, France
Dennis Sullivan, Graduate School & University Center, City University of New York
Charles Tresser*, IBM
(87858456)

2:45 p.m.
Integration over chains with infinite mass and applications to dynamical systems.
Jenny Harrison*, University of California, Berkeley
(87858900)

3:15 p.m.
The rigidity of dynamically defined cantor sets in one dimensional systems.
Rafael de la Llave, University of Texas, Austin
R. Philip Schafer*, University of Texas, Austin
(87858947)

3:45 p.m.
Combinatorics, geometry and attractors of unimodal maps.
Mikhail Lyubich*, State University of New York, Stony Brook
(87858528)

Thursday January 14, 1993, 2:15 p.m.4:05 p.m.
AMS Special Session on Quantum Groups, I

2:15 p.m.
Cohomology of quantum groups of roots of unity.
Shrawan Kumar*, Tata Institute of Fundamental Research,
(87817836)

2:45 p.m.
Quantum affine algebras and crystal bases.
Kailash C. Misra*, North Carolina State University
(87817271)

3:15 p.m.
Quantum groups and integrals of motion.
Edward Frenkel*, Harvard University
(87817837)

3:45 p.m.
Quantum affine algebras and holomorphic vector bundles.
Pavel I. Etingof*, Yale University
(87817838)

Thursday January 14, 1993, 2:15 p.m.4:15 p.m.
MAA Minicourse \#2: Part B
How to make effective use of inexpensive pocket computers to develop the concepts and techniques of calculus
Organizers:
Franklin Demana, Ohio State University
Bert K. Waits, Ohio State University

Thursday January 14, 1993, 2:15 p.m.4:15 p.m.
MAA Minicourse \#3: Part B
All right! I've got a graphing calculator. What happens next?
Organizers:
Iris B. Fetta, Clemson University

Thursday January 14, 1993, 2:15 p.m.4:15 p.m.
MAA Minicourse \#4: Part B
Unifying themes in discrete mathematics
Organizers:
Ralph Grimaldi, RoseHulman Institute of Technology

Thursday January 14, 1993, 2:15 p.m.4:15 p.m.
MAA Minicourse \#9: Part B
Earth algebra$:$ College algebra with applications to environmental issues
Organizers:
Christopher Schaufele, Kennesaw State College
Nancy Zumoff, Kennesaw State College

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
AMS Session on Linear Spaces (Geometric Aspects)

2:15 p.m.
Extreme points of convex sets and Morse's lemma.
K. Sundaresan*, Cleveland State University
(87846103)

2:30 p.m.
On the extreme point structure of the unit ball of L^p(mu)*.
Zhibao Hu*, Miami University, Oxford
(87846176)

2:45 p.m.
Geometry of spaces of vectorvalued harmonic functions.
Patrick Dowling, Miami University, Oxford
Zhibao Hu, Miami University, Oxford
Mark A. Smith*, Miami University, Oxford
(87846182)

3:00 p.m.
On extensions of norms which conserve geometrical properties.
Marian Fabian*, Miami University
(87846183)

3:15 p.m.
On a topological property of certain Calkin algebras.
Michael J. Meyer*, Georgia State University
(87846425)

3:30 p.m.
Uniform KadecKleeHuff properties of vectorvalued Hardy spaces.
P. N. Dowling*, Miami University, Oxford
C. J. Lennard, University of Pittsburgh, Pittsburgh
(87846174)

3:45 p.m.
A rigid space admitting compact operators.
Paul Sisson*, University of South Carolina, Columbia
(87846478)

4:00 p.m.
Maps associated with lattice homomorphisms on Banach lattices.
William A. Feldman*, University of Arkansas, Fayetteville
Paula G. Young, University of Arkansas, Fayetteville
(87846760)

Thursday January 14, 1993, 2:15 p.m.3:55 p.m.
AMS Session on Algebraic Geometry and Applied Group Theory

2:15 p.m.
Resultant techniques and Hensel's lemma.
Edward Bishop*, University of Texas, El Paso
(87814639)

2:30 p.m.
A new interpretation of the character of the group SO(2n+1).
ShiYuan Wei*, Pennsylvania State University, Mont Alto Campus
David Bressoud, Pennsylvania State University, University Park
(87805371)

2:45 p.m.
Quotients for group actions over nonclosed fields.
Ralph Bremigan*, Ball State University
(87814769)

3:00 p.m.
Characters of centralizer algebras of mixed tensor representations of GL(r,C) and U_q(gl(r,C).
Thomas M. Halverson*, University of Wisconsin, Madison
(87805846)

3:15 p.m.
Complete homogeneous varieties in prime characteristic.
Niels Lauritzen*, University of Illinois, UrbanaChampaign
(87814119)

3:30 p.m.
Hadamard difference sets in nonabelian groups of order 4p^2.
Joel E. Iiams*, Colorado State University
(87805551)

3:45 p.m.
Quotients of Gstable subschemes, Cartesian diagrams, and embeddings.
Mark E. Huibregtse*, Skidmore College
(87814215)

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
AMS Session on Operator Theory, II

2:15 p.m.
C._0 and C_11 contractions with finite defect: Dual operator algebras and multiplicity.
George R. Exner*, Bucknell University
S. Jo Young, Keimyung University, Korea
Il Bong Jung, Kyungpook National University, Korea
(8784789)

2:30 p.m.
Boundedness in L^1 for Hankel operators on Bergman space.
Daniel H. Luecking*, University of Arkansas
Huiping Li, State University of New York, Buffalo
(87847827)

2:45 p.m.
Local derivations on operator algebras.
Randall L. Crist*, Texas A & M University
(87847790)

3:00 p.m.
Semigroups affiliated with algebras of operators.
Paul L. Patterson*, Saint Louis University
Timothy W. Randolph, University of Missouri, Rolla
(87847220)

3:15 p.m.
A model of families of doubly commuting quasinormal operators.
Ximena Catepillan*, Millersville University of Pennsylvania
Marek Ptak, University of Agriculture, Poland
Waclaw Szymanski, West Chester University of Pennsylvania
(87847605)

3:30 p.m.
Local spectral theory for composition operators.
R. C. Smith*, Mississippi State University
(87847393)

3:45 p.m.
Riemann surfaces and Toeplitz operators.
Gholamreza Akbari*, University of Georgia
(87847431)

4:00 p.m.
Natural conditions on the spectra of operators.
Scott H. Hochwald*, University of North Florida
(8784769)

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
AMS Session on Teaching Mathematics: When, What and How

2:15 p.m.
A collaborative partnership between high school and university mathematics faculty.
Connie Schrock, Emporia State University
Elizabeth Yanik*, Emporia State University
Joe Yanik, Emporia State University
(87897390)

2:30 p.m.
Finding topics for students with limited backgrounds.
Jonathan M. Huntley, Bernard M. Baruch College, City University of New York
David E. Tepper*, Bernard M. Baruch College, City University of New York
(87811167)

2:45 p.m.
Using a computer algebra system in linear algebra.
John W. Davenport*, Georgia Southern University
(87898398)

3:00 p.m.
Trigonometric identities in teaching calculus.
Bella Wiener*, University of TexasPan American
(87898581)

3:15 p.m.
Basing a calculus course on graphing calculator exploratory assignments.
Al Shenk*, University of California at San Diego, La Jolla
(87898785)

3:30 p.m.
Narcissism and mathematical learning: Are they related?
Malcolm Goldman*, Courant Institute of Mathematical Sciences, New York University
Ruby S. Goldman, New York, New York
(87898521)

3:45 p.m.
Change of basis.
Glenn Adamson*, Ottawa University
(87898828)

4:00 p.m.
Polynomial divisibilty under composition.
Daniel Cass, Saint John Fisher College
Gerald Wildenberg*, Saint John Fisher College
(87898625)

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
MAA Session on Empowering the Mathematical Community, II

2:15 p.m.
Proof as a convincing argument that answerswhy?.
David W. Henderson*, Cornell University
(878001044)

2:30 p.m.
Some ideas on empowerment that work.
Lee Lorch*, York University
(878001046)

2:45 p.m.
Collaborative learning of fractal geometry and chaos theory by educationally disadvantaged students.
Martin Hoffman*, Queens College, City University of New York
(878001045)

3:00 p.m.
Empowering the mathematics major.
Henry Gore*, Morehouse College
(878001041)

3:15 p.m.
Question and answer period

3:20 p.m.
Active power through noneurocentric critical math.
S. E. Anderson*, Eugene Lang College
(878001034)

3:35 p.m.
Empowerment in mathematics education and ethnomathematics.
Ubiratan D'Ambrosio*, University Estadual de Compinas, Spain
(878001038)

3:50 p.m.
Empowering students of topology.
Nancy Lineken Hagelgans*, Ursinus College
(878001043)

4:05 p.m.
Question and answer period

Thursday January 14, 1993, 2:15 p.m.4:15 p.m.
MAA Session on Impact of Nontraditional Instructional Methods on Testing and Evaluation, II

2:15 p.m.
Evaluation of student performance in a revised core mathematics program.
David C. Arney, United States Military Academy
Frank R. Giordano*, United States Military Academy
(878001063)

2:40 p.m.
Graphics calculators? Fine, but how do we test students?.
Elaine Hubbard*, Kennesaw State College
(878001064)

3:05 p.m.
Evaluation of groups and individuals when instruction is based on research in how people learn.
Ed Dubinsky*, Purdue University, West Lafayette
(878001060)

3:30 p.m.
A group oral final examination.
Theodore S. Erickson*, Wheeling Jesuit College
(878001061)

3:55 p.m.
Evaluation and testing techniques used with nontraditional learning activities.
Jean M. Alliman*, Hesston College
(878001058)

Thursday January 14, 1993, 2:15 p.m.4:00 p.m.
MAA Session on Mathematics and the Arts, I

2:15 p.m.
Mathematics and the visual arts.
Helen Christensen, RSM*, Loyola College
(878001129)

2:30 p.m.
Coordinate geometry, fact and fiction.
William P. Berlinghoff*, Farmington, Maine
(878001127)

2:45 p.m.
The symbiotic evolution of mathematics and art.
Raymond F. Coughlin*, Temple University
(878001130)

3:05 p.m.
A tiling scheme from M. C. Escher.
Daniel Davis*, Kingsborough Community College
(878001131)

3:20 p.m.
The art of curved mirrors.
Radoslav Dimitric*, Pennsylvania State University, University Park
(878001132)

3:35 p.m.
Variations on theme: Exploring mathematics through Hofstadter's Godel, Eshcer, Bach.
John W. Emert*, Ball State University
(878001133)

3:50 p.m.
Musical composition and chaos.
Andrea K. Polli*,
(878001141)

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
AMSMAANAM Session, Program B
Mathematics$:$ A catalyst for educational progress in the year $2000$ and beyond\endash filling the educational pipeline

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
AMS Library Committee Panel Discussion
Publication costs$:$ are they controllable?

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
MAA Committee on Computers in Mathematics Education Panel Discussion
Progress in mathematics education using computer graphics

Thursday January 14, 1993, 2:15 p.m.4:10 p.m.
MAA Committee on Testing Panel Discussion
Assessment\endash its role in mathematics reform

Thursday January 14, 1993, 2:20 p.m.4:15 p.m.
MAA Session on Using Data and Computers in Teaching Statistics, II

2:20 p.m.
Investigational statistics: A data driven course.
Donald Bentley*, Pomona College
(878001190)

2:40 p.m.
Introductory statistics: The "workshop" approach.
Allan J. Rossman*, Dickinson College
(878001206)

2:50 p.m.
A comparison of student versions of PC statistics packages.
Robin H. Lock*, Saint Lawrence University
(878001202)

3:05 p.m.
When does the "T statistic" have a t distribution?.
Elliot A. Tanis*, Hope College
Alexey G. Stepanov, Michigan State University
(878001209)

3:15 p.m.
Sometimes I get lucky.
Andre Michelle Lubecke*, Lander College
(878001203)

3:30 p.m.
Using relevant databases in teaching a computerbased and research and quality control oriented course in basic statistics.
Sohindar Sachdev*, Elizabeth City State University
Ivory L. Lyons, Elizabeth City State University
Muhammad Mannan, Elizabeth City State University
(878001207)

3:40 p.m.
Using Data Desk and projects in teaching probability and statistics.
Ernest J. Manfred*, United States Coast Guard Academy
(878001204)

3:55 p.m.
Personal data sets and computer technology in teaching statistics.
Cathy W. Carter*, Christian Brothers University
Nancy F. Ellis, Neumann College
(878001191)

4:05 p.m.
Using your college data as a data base.
Neil Eklund*, Centre College
Robert Piziak, Baylor University
(878001193)

Thursday January 14, 1993, 3:20 p.m.4:10 p.m.
AMS Invited Address
You can't hear the shape of a drum.
Carolyn S. Gordon*, Dartmouth College
(87800955)

Thursday January 14, 1993, 4:25 p.m.4:55 p.m.
MAA Business Meeting

Thursday January 14, 1993, 5:00 p.m.5:30 p.m.
AMS Business Meeting

Thursday January 14, 1993, 6:00 p.m.8:00 p.m.
MAA Minicourse \#5: Part B
Using supercalculators to enhance instruction and learning in linear algebra
Organizers:
Donald R. LaTorre, Clemson University

Thursday January 14, 1993, 6:00 p.m.8:00 p.m.
MAA Minicourse \#6: Part B
Teaching the introductory statistics course
Organizers:
Donald L. Bently, Pomona College
Robin Lock, St. Lawrence University
Thomas L. Moore, Grinnell College
Mary Parker, Austin Community College
Jeffrey A. Witmer, Oberlin College

Thursday January 14, 1993, 6:00 p.m.8:00 p.m.
MAA Minicourse \#7: Part B
Project CALC$:$ Calculus as a laboratory course
Organizers:
Lawrence C. Moore, Duke University
David A. Smith, Duke University

Thursday January 14, 1993, 6:00 p.m.8:00 p.m.
MAA Minicourse \#8: Part B
Environmental models
Organizers:
Roland H. Lamberson, Humboldt State University

Thursday January 14, 1993, 6:30 p.m.7:30 p.m.
Joint Policy Board for Mathematics Session

Thursday January 14, 1993, 7:00 p.m.8:30 p.m.
MAA CAS Reunion

Thursday January 14, 1993, 7:30 p.m.9:55 p.m.
MAA Session on Linear Algebra, II

7:30 p.m.
What are "gems" and why should you share yours?.
Charles R. Johnson*, College of William & Mary
(878001109)

7:55 p.m.
Matrix factorizations.
Gilbert Strang*, Massachusetts Institute of Technology
(878001121)

8:20 p.m.
Difference equations in linear algebra instruction.
David C. Lay*, University of Maryland, College Park
(878001113)

8:40 p.m.
Down with determinants!.
Sheldon Axler*, Michigan State University
(878001093)

9:00 p.m.
Supercalculators in linear algebra.
Donald R. LaTorre*, Clemson University
(878001112)

9:20 p.m.
The recommendations of the linear algebra study group and some of their classroom implications.
A. Duane Porter*, University of Wyoming
(878001118)

9:40 p.m.
Implementing the linear algebra curriculum study group recommendations.
David Carlson*, San Diego State University
(878001097)

Thursday January 14, 1993, 7:30 p.m.9:30 p.m.
MAA Testing User Group

Thursday January 14, 1993, 8:00 p.m.10:00 p.m.
MAA Poster Session
Laboratory approaches in undergraduate mathematics

Thursday January 14, 1993, 8:00 p.m.9:00 p.m.
MAA Open Discussion
Open meeting on MAA strategic planning
Thomas W. Tucker, Colgate University

Thursday January 14, 1993, 8:00 p.m.9:30 p.m.
MAA Video Presentation
The Alhambra past and present\endash a geometer's odyssey
MAA Online
Inquiries: meet@ams.org