AMS Meeting Full Program
Current as of Tuesday, April 12, 2005 15:08:35
Program 
Deadlines 
Inquiries: meet@ams.org
1989 Summer Meeting
Boulder, CO, August 710, 1989
Meeting #850
Associate secretaries:
Andy R Magid, AMS
amagid@ou.edu
Kenneth A Ross, MAA
ross@math.uoregon.edu
Saturday August 5, 1989
Sunday August 6, 1989
Monday August 7, 1989

Monday August 7, 1989, 7:30 a.m.8:20 a.m.
AMS Invited Address
The dynamics of billiards in polygons.
Howard A. Masur*, University of Illinois, Chicago
(8505839)

Monday August 7, 1989, 7:45 a.m.9:45 a.m.
MAA Minicourse #1 (Part A)
The use of personal computers in an introductory linear algebra course
Homer Bechtell, University of New Hampshire

Monday August 7, 1989, 7:45 a.m.9:45 a.m.
MAA Minicourse #2 (Part A)
Combinatorics via functional equations
Organizers:
Donald R. Snow, Brigham Young University

Monday August 7, 1989, 8:35 a.m.9:25 a.m.
AMS Invited Address
Limiting behavior of densities for annihilating systems of particles.
Maury D. Bramson*, University of Wisconsin, Madison
(8506038)

Monday August 7, 1989, 10:00 a.m.10:50 a.m.
AMSMAA Invited Address
Crystals, in equilibrium and otherwise.
Jean E. Taylor*, Rutgers University, New Brunswick

Monday August 7, 1989, 12:15 p.m.1:15 p.m.
AMS Colloquium Lectures: Lecture I
Geometry, groups, and selfsimilar tilings.
William P. Thurston*, Princeton University

Monday August 7, 1989, 1:30 p.m.2:20 p.m.
MAA Invited Address
Iterating rational maps and automorphisms of the Bernoulli shift.
Linda Keen*, Herbert H. Lehman College, City University of New York

Monday August 7, 1989, 1:30 p.m.3:20 p.m.
AMS Session on Applications

1:30 p.m.
Perturbation solution to a nonuniform shell subjected to a moving load.
Leonard J. Putnick*, Siena College
(8507326)

1:50 p.m.
Forced oscillations near a Hopf bifurcation in a biological model.
Alfonso Casal, Polytechnic University of Madrid, Spain
Alfredo Somolinos*, Mercy College
(8509280)

2:10 p.m.
The axisymmetric CauchyPoisson problem in a stratified liquid.
Lokenath Debnath*, University of Central Florida
Uma Guha, University of Central Florida
(8507683)

2:30 p.m.
ARIMA models in commodities markets.
Albert E. Parish Jr.*, College of Charleston
(8509029)

2:50 p.m.
The moduli space of generalized state space systems.
Joyce O'Halloran*, Portland State University
Diederich Hinrichsen, University of Bremen, Federal Republic of Germany
(8509311)

3:10 p.m.
Concerning random number generation.
Nancy Boynton, State University of New York, College at Fredonia
Joseph Straight*, State University of New York, College at Fredonia
(8506597)

Monday August 7, 1989, 1:30 p.m.3:20 p.m.
AMS Session on Algebra and Combinatorics

1:30 p.m.
Finite semilattices whose monoids of endomorphisms are regular.
M. E. Adams, State University of New York, College at New Paltz
Matthew Gould*, Vanderbilt University
(8500617)

1:50 p.m.
Rigidity matroids.
Jack Graver*, Syracuse University
(8500523)

2:10 p.m.
Edgegraceful labeling of generalized Petersen graphs.
SinMin Lee*, San Jose State University
Eric Seah, University of Manitoba
(8500510)

2:30 p.m.
Directed 3colored (3c) triangulation (T.) Part. II. Compositions and congruences. Conjecture W=A*.
Dov Tamari*, New York, New York
(8500584)

2:50 p.m.
Magic squares of order 4A classification scheme using permutations.
William A. Sammons*, University of North Florida
(8500586)

3:10 p.m.
On the arithmetic of quadratic function fields.
T. Kambayashi*, Tokyo Denki University, Japan
Y. Takano, Tokyo Denki University, Japan
(8501295)

Monday August 7, 1989, 1:30 p.m.4:10 p.m.
MAA Session on Pedagogical Uses of Symbolic Computer Systems, Part A

1:30 p.m.
With CAS, engineers can do more than set derivatives equal to zero.
G. Elton Graves*, RoseHulman Institute of Technology

1:45 p.m.
Educational research and suggestions in using Maple and MACSYMA in the first year of college calculus.
Jeanette R. Palmiter*, Kenyon College

2:00 p.m.
Calculus I with computer algebra.
Phoebe T. Judson*, Trinity College

2:15 p.m.
Revitalizing undergraduate mathematics with symbol manipulating graphics calculators.
John W. Kenelly*, Clemson University
Donald R. LaTorre, Clemson University

2:45 p.m.
Calculus, the HP28S, and problem solving.
John Selden*, Tennessee Technological University
Annie Selden, Tennessee Technological University

3:00 p.m.
The power and the limitations of the HP28S in the teaching and the learning of mathematics.
J. A. Eidswick*, University of Nebraska, Lincoln

3:15 p.m.
Using symbolic computation in teaching inventory models.
Marietta J. Tretter*, Texas A\thsp\&\thsp M University, College Station
Benito Flores, Texas A\thsp\&\thsp M University, College Station

3:30 p.m.
Using symbol manipulating calculators in precalculus.
Paul R. Patten*, North Georgia College

3:45 p.m.
Using REDUCE in undergraduate instruction.
V. S. Ramamurthi*, University of North Florida

4:00 p.m.
Enhancing sophomore engineering calculus with computer symbolic algebra.
John H. Mathews*, California State University, Fullerton

Monday August 7, 1989, 1:30 p.m.3:00 p.m.
AMS/MAA Joint Panel Discussion
Everybody Counts
Moderators:
John A. Thorpe, SUNY at Buffalo

Monday August 7, 1989, 2:35 p.m.3:25 p.m.
MAA Invited Address
Metrizability in manifolds.
Mary Ellen Rudin*, University of Wisconsin, Madison

Monday August 7, 1989, 3:00 p.m.4:50 p.m.
AMS Special Session on Dynamics and Moduli Space, I

3:00 p.m.
The growth function in billiards.
William A. Veech*, Rice University
(8505821)

3:30 p.m.
Billiards and rational periodic directions in polygons.
Michael D. Boshernitzan*, Rice University
(85058107)

4:00 p.m.
Upper bounds for the Hausdorff dimension of the space of nonuniquely ergodic measured foliations.
Howard A. Masur*, University of Illinois, Chicago
(8503243)

4:30 p.m.
Harmonic maps and Thurston's metric.
Steven Kerckhoff*, Stanford University
(8505368)

Monday August 7, 1989, 3:00 p.m.5:00 p.m.
MAA Minicourse #1 (Part B)
The use of personal computers in an introductory linear algebra course
Homer Bechtell, University of New Hampshire

Monday August 7, 1989, 3:00 p.m.5:00 p.m.
MAA Minicourse #2 (Part B)
Combinatorics via functional equations
Organizers:
Donald R. Snow, Brigham Young University

Monday August 7, 1989, 3:00 p.m.5:00 p.m.
MAA Minicourse #3 (Part A)
Chaotic dynamical systems
Organizers:
Robert L. Devaney, Boston University

Monday August 7, 1989, 3:30 p.m.4:40 p.m.
AMS Session on General Session

3:30 p.m.
Who was A. Miguel?
James R. Smart*, San Jose State University
(8500113)

3:50 p.m.
When is a Markovian semigroup a group?
W. M. Priestley*, University of the South
(8504688)

4:10 p.m.
On irreducible representations of semidirect products.
Grzegorz Cieciura, Warsaw University, Poland
Igor Szczyrba*, University of Northern Colorado
(8502096)

4:30 p.m.
On the surface classification theorem.
Gregory F. Martin*, University of North Florida
(85055105)

Monday August 7, 1989, 3:30 p.m.5:00 p.m.
AMS Session on Algebra and Combinatorics

3:30 p.m.
Dihedral crossed product algebras.
Susan Williamson*, Newton Centre, Massachusetts
(8501689)

3:50 p.m.
Exact and coexact matrices.
Edwin Connell*, University of Miami
John Zweibel, Florida International University
(8501315)

4:10 p.m.
Polynomial automorphisms.
Edwin Connell, University of Miami
John Zweibel*, Florida International University
(8501316)

4:30 p.m.
Representation with a prescribed initial numerator and consecutive integer numerators.
B. M. Stewart*, Okemos, Michigan
(8501103)

4:50 p.m.
The density of a class of fractions.
Don Redmond*, Southern Illinois University, Carbondale
(8501142)

Monday August 7, 1989, 3:40 p.m.5:40 p.m.
MAA Section Officers

Monday August 7, 1989, 6:00 p.m.8:00 p.m.
JPBM National Meeting of Department Heads
Evaluating teaching in mathematics
Speakers:
Donald W. Bushaw, Washington State University
Thomas W. Tucker, Colgate University
Tom Trotter, Arizona State University
Moderators:
David J. Lutzer, College of William and Mary
Tuesday August 8, 1989

Tuesday August 8, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Free Boundary Problems and Partial Differential Equations, I

7:00 a.m.
Convexity of level sets for solutions to elliptic ring problems.
Nicholas Korevaar*, University of Utah
(8503528)

7:30 a.m.
Informal Discussion

8:00 a.m.
Nonuniqueness and uniqueness of capillary surfaces.
Paul Concus, University of California, Berkeley
Robert Finn*, Stanford University
(8504949)

8:30 a.m.
Damped shallow water waves.
Ronald B. Guenther*, Oregon State University
(8507653)

Tuesday August 8, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Dynamics and Moduli Space, II

7:00 a.m.
Infinite energy harmonic maps and degeneration of hyperbolic surfaces in moduli space.
Michael Wolf*, Rice University
(8503227)

7:30 a.m.
Length spectrum and Teichmuller space.
Albert Fathi*, University of Florida
(8505322)

8:00 a.m.
Critical point surgery for rational maps of degree 2.
Lisa R. Goldberg, Brooklyn College, City University of New York
Linda Keen*, Herbert H. Lehman College, City University of New York
(8503045)

8:30 a.m.
Rotation cycles on the unit circle
Lisa R. Goldberg*, Brooklyn College, City University of New York
(8505887)

Tuesday August 8, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Computational Number Theory and Applications, I

7:00 a.m.
The selfinitializing quadratic sieve.
Carl Pomerance*, University of Georgia
(8501158)

7:30 a.m.
Design of an FFT continuation to the ECM method of factorization.
Peter L. Montgomery*, University of California, Los Angeles
(8501125)

8:00 a.m.
Factorization of integers.
Samuel S. Wagstaff, Jr.*, Purdue University, West Lafayette
(8501171)

8:30 a.m.
Factoring by electronic mail.
Arjen K. Lenstra*, University of Chicago
(8501156)

Tuesday August 8, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #3 (Part B)
Chaotic dynamical systems
Organizers:
Robert L. Devaney, Boston University

Tuesday August 8, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #4 (Part A)
Facultymanaged programs that produce minority mathematics majors
Organizers:
Ray Shiflett, California State Polytechnic University, Pomona
Uri Treisman, University of California, Berkeley

Tuesday August 8, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #5 (Part A)
Starting, funding and sustaining mathematics laboratories
Organizers:
Stavros N. Busenberg, Harvey Mudd College

Tuesday August 8, 1989, 7:00 a.m.8:30 a.m.
AMS Session on Topology

7:00 a.m.
Automorphisms of foliations defined by complex linear vectorfields.
S. Shahshahani*, ICTPMathematics Group, Trieste, Italy and University of Technology, Tehran, Iran
(8505882)

7:20 a.m.
A new proof that 1ULC implies tameness.
Davis Finley*, University of Texas, Austin
(8505746)

7:40 a.m.
Heegaard genus 2 representations of two 3manifolds with the same finite fundamental group.
Francis D. Lonergan*, Webster, Massachusetts
(8505533)

8:00 a.m.
Split compactifications.
Charles Aull*, Virginia Polytechnic Institute and State University
(8505464)

8:20 a.m.
On semiinvariant submanifolds.
K. D. Singh*, Lucknow University, India
(8505374)

Tuesday August 8, 1989, 7:00 a.m.8:50 a.m.
AMS Session on Analysis, I

7:00 a.m.
Greatest common divisor matrices. II.
Keith Bourque, University of Southwestern Louisiana
Steve Ligh*, University of Southwestern Louisiana
Scott Beslin, Nicholls State University
(8501592)

7:20 a.m.
Least squares with constraints and generalized eigenvalue problems.
Geza Schay*, University of Massachusetts, Boston
(8501576)

7:40 a.m.
A class of examples of Dsequences.
T. A. Bick, Union College
John Coffey*, Purdue University, Calumet Campus
(8502840)

8:00 a.m.
Fixpoints of composite entire and meromorphic functions.
Walter Bergweiler*, Cornell University and RWTH Aachen, Federal Republic of Germany
(8503019)

8:20 a.m.
The boundary behaviour of harmonic univalent maps.
Yusuf AbuMuhanna*, Kuwait University, Kuwait
(8503002)

8:40 a.m.
Quasilinearity and the first eigenvalue.
Victor L. Shapiro*, University of California, Riverside
(8503536)

Tuesday August 8, 1989, 7:00 a.m.8:55 a.m.
MAA Session on Pedagogical Uses of Symbolic Computer Systems, Part B

7:00 a.m.
Calculus and computing: An exploratory study to examine the effectiveness of using a computer algebra system to develop increased conceptual understanding in a first semester calculus course.
Connie S. Schrock*, Emporia State University

7:15 a.m.
Symbolic computing in Calculus I.
Charlene Beckmann*, Grand Valley State University

7:30 a.m.
Oracular failures of computer algebra systems.
Yves Nievergelt*, Eastern Washington University

7:45 a.m.
Using a symbolic computer system in a calculus laboratory.
L. Carl Leinbach*, Gettysburg College

8:00 a.m.
Calculus and mathematica.
H. Porta*, University of Illinois, UrbanaChampaign
J. J. Uhl, University of Illinois, UrbanaChampaign

8:15 a.m.
Using CAS to explore calculus concepts.
Zaven Karian*, Denison University

8:30 a.m.
Calculus for engineers via Maple.
Robert J. Lopez*, RoseHulman Institute of Technology

8:45 a.m.
Weak students, symbolic computing, and calculus.
J. Douglas Child*, Rollins College

Tuesday August 8, 1989, 7:00 a.m.8:55 a.m.
PME Contributed Paper Session

Tuesday August 8, 1989, 7:30 a.m.8:55 a.m.
MAA Public Hearing
Accreditation
Moderators:
John D. Fulton, University of West Florida
s:
Calvin T. Long, Washington State University
Lynn A. Steen, St. Olaf College

Tuesday August 8, 1989, 7:30 a.m.8:00 a.m.
AWM Membership Meeting

Tuesday August 8, 1989, 7:40 a.m.8:30 a.m.
MAA Invited Address
Selfdual quantifiers: A unifying theme in mathematics and logics.
John W. Addison, Jr.*, University of California, Berkeley

Tuesday August 8, 1989, 8:00 a.m.9:00 a.m.
AWM Panel Discussion
Women in operations research: Their work and experiences
Moderators:
Jill P. Mesirov, Thinking Machines Corporation
s:
Margaret Brandeau, Stanford University
Janice Hammond, Harvard Business School
Margaret Wright, AT&T Bell Laboratories

Tuesday August 8, 1989, 9:10 a.m.10:00 a.m.
AMSMAA Invited Address
Case studies of political opinions passed off as science and mathematics.
Serge Lang*, Yale University

Tuesday August 8, 1989, 10:15 a.m.11:15 a.m.
MAA Earle Raymond Hedrick Lectures, Lecture I
The mathematics of mixing things up: From card shuffling to counting and back.
Persi W. Diaconis*, Harvard University

Tuesday August 8, 1989, 11:05 a.m.12:00 p.m.
Pi Mu Epsilon Council

Tuesday August 8, 1989, 12:15 p.m.1:15 p.m.
AMS Colloquium Lectures: Lecture II
Geometry, groups, and selfsimilar tilings.
William P. Thurston*, Princeton University

Tuesday August 8, 1989, 1:25 p.m.3:25 p.m.
MAA Minicourse #3 (Part C)
Chaotic dynamical systems
Organizers:
Robert L. Devaney, Boston University

Tuesday August 8, 1989, 1:25 p.m.3:25 p.m.
MAA Minicourse #4 (Part B)
Facultymanaged programs that produce minority mathematics majors
Organizers:
Ray Shifflet, California State Polytechnic University, Pomona
Uri Treisman, University of California, Berkeley

Tuesday August 8, 1989, 1:25 p.m.3:25 p.m.
MAA Minicourse #5 (Part B)
Starting, funding and sustaining mathematics laboratories
Organizers:
Stavros N. Busenberg, Harvey Mudd College

Tuesday August 8, 1989, 1:30 p.m.3:00 p.m.
AMS Progress in Mathematics Lecture
Elliptic methods in symplectic geometry.
Dusa McDuff*, State University of New York, Stony Brook
(85099119)
Applications of PDE methods by Gromov, Floer, and others to symplectic geometry of manifolds.
Dusa McDuff*, State University of New York, Stony Brook

Tuesday August 8, 1989, 1:30 p.m.3:20 p.m.
MAA Session on MAAPME Contributed Paper Session

Tuesday August 8, 1989, 1:30 p.m.3:10 p.m.
MAA Session on Pedagogical Uses of Symbolic Computer Systems, Part C

1:30 p.m.
MACSYMA in the advanced undergraduate curriculum.
Lester Senechal*, Mount Holyoke College

1:45 p.m.
Using computers to explore mathematics.
Emily H. Moore*, Grinnell College

2:00 p.m.
Challenges for intelligent computerbased calculus tutoring.
Tryg A. Ager*, Stanford University

2:15 p.m.
User friendly front ends and freshman calculus.
Edwin Rogers*, Siena College

2:30 p.m.
Using high level Maple packages on the mainframe for calculus.
Neil E. Berger*, University of Illinois, Chicago

2:45 p.m.
Exploratory data analysis.
Richard N. Barshinger*, Pennsylvania State University, Worthington Scranton Campus

3:00 p.m.
Symbolic computing in precalculus, calculas, and beyond.
Farley Mawyer*, York College, City University of New York

Tuesday August 8, 1989, 1:30 p.m.3:25 p.m.
MAA Session on Calculus Revision, Part A

1:30 p.m.
The calculus program at NSF.
John S. Bradley*, National Science Foundation

1:50 p.m.
The calculus reform project at Rollins.
J. Douglas Child*, Rollins College

2:10 p.m.
Some introductory problems on the geometry of function graphs.
Peter D. Taylor*, Queen's University

2:30 p.m.
A humanistic calculus.
William E. Rosenthal*, Ursinus College

2:50 p.m.
A place for writing in a revised calculus curriculum.
Emelie Kenney*, Wilkes College

3:10 p.m.
A four year plan to install a calculus lab.
John Williams*, University of Hartford

3:30 p.m.
Appropriate exam questions for Calculus I.
Charlene Beckmann, Grand Valley State University
Ted Sundstrom*, Grand Valley State University

Tuesday August 8, 1989, 1:30 p.m.3:20 p.m.
PME Contributed Paper Session

Tuesday August 8, 1989, 1:30 p.m.2:00 p.m.
MAA Video
Finite symmetry groups in three dimensions
Organizers:
Lorraine T. Foster, California State University, Northridge

Tuesday August 8, 1989, 3:35 p.m.5:00 p.m.
AMS Business Meeting
Wednesday August 9, 1989

Wednesday August 9, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Mathematical Questions in Computational Geometry, I

7:00 a.m.
Convex hull boundaries, trisupports, and stalls for space polygons.
Thomas F. Banchoff*, Brown University
(8505263)

7:30 a.m.
Supercomputing and minimal surfaces.
Fred Almgren*, Princeton University
(8504966)

8:00 a.m.
Algorithms for developable surfaces.
George Fix*, University of Texas, Arlington
(8505394)

8:30 a.m.
Surface/surface intersections in geometric modeling.
Wayne Tiller*, Structural Dynamics Research Corporation, Milford, Ohio
(85068103)

Wednesday August 9, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Free Boundary Problems and Partial Differential Equations, II

7:00 a.m.
Convexity of level lines for semilinear equations.
Peter Laurence*, Universita Degli Studii, Milano, Italy
Ed Stredulinsky, Lawrence University
(8503561)

7:30 a.m.
Asymptotic behavior of minimal and capillary surfaces over a semiinfinite strip.
David Siegel*, University of Waterloo
(8503547)

8:00 a.m.
More about crystal surfaces in equilibrium.
Jean Taylor*, Rutgers University, New Brunswick
(8504972)

8:30 a.m.
A onephase hyperbolic Stefan problem in multidimensional space.
Dening Li*, West Virginia University
(8503569)

Wednesday August 9, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Computational Number Theory and Applications, II

7:00 a.m.
Some new computational results on Warings problem.
Marvin Wunderlich*, National Security Agency, Fort George G. Meade, Maryland
Jeffrey Kabina, National Security Agency, Fort George G. Meade, Maryland
(8501181)

7:30 a.m.
Residual methods for computing the Hermite normal form.
Paul D. Domich*, National Institute of Standards & Technology, Boulder, Colorado
(8501157)

8:00 a.m.
Construction of special points for the Riemann zeta function.
A. M. Odlyzko*, AT&T Bell Laboratories, Murray Hill, New Jersey
(8501160)

8:30 a.m.
Computing the MordellWeil rank of curves of genus 2.
Dan Gordon*, University of Georgia
David Grant, University of Colorado, Boulder
(8501148)

Wednesday August 9, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #6 (Part A)
Group theory through art
Organizers:
Thomas Brylawski, University of North Carolina, Chapel Hill

Wednesday August 9, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #7 (Part A)
HP28S short course for nearly inexperienced users
Organizers:
Jerold Mathews, Iowa State University

Wednesday August 9, 1989, 7:00 a.m.8:30 a.m.
AMS Session on Analysis, II

7:00 a.m.
Oscillatory behavior of bounded solutions of a higher order equation.
Witold Kosmala*, Appalachian State University
(8503441)

7:20 a.m.
Proper scoring rules for probability forecasters.
PL. Kannappan, University of Waterloo
P. K. Sahoo*, University of Louisville
(8503991)

7:40 a.m.
Norm inequalities and characterizations of inner product spaces.
A. M. AlRashed*, King Saud University, Saudi Arabia
(8504612)

8:00 a.m.
Geometric traces and nuclear operators on Lp spaces.
Chris Brislawn*, University of Colorado, Boulder
(8504790)

8:20 a.m.
Strong convergence theorems for pseudocontractive mappings in Banach spaces.
Claudio Morales*, University of Alabama, Huntsville
(8504785)

Wednesday August 9, 1989, 7:00 a.m.8:55 a.m.
MAA Session on Calculus Revision, Part B

7:00 a.m.
Why integrate calculus and physics?
Richard Yeatts*, Colorado School of Mines

7:20 a.m.
Calculus and physics: Promoting the synergism.
Joan Rohrer Hundhausen*, Colorado School of Mines

7:40 a.m.
Calculus revisited: Building an `Introductory' college course around the high school calculus experience.
Alice P. Miller*, Babson College

8:00 a.m.
Writing to learn the calculus.
John Donnellan*, United States Coast Guard Academy
Ernest Manfred, United States Coast Guard Academy

8:20 a.m.
One variable calculus from a modeling point of view: Content.
Dan Sloughter*, Furman University

8:40 a.m.
HyperCalculus: A hypertext system for calculus instruction.
Loren Argabright*, Drexel University

Wednesday August 9, 1989, 7:00 a.m.8:55 a.m.
PME Contributed Paper Session

Wednesday August 9, 1989, 7:30 a.m.8:50 a.m.
AMS Special Session on Dynamics and Moduli Space, III

7:30 a.m.
Fundamental polyhedra for `Margulis spacetimes.'
Todd A. Drumm*, University of Maryland, College Park
(8505320)

8:00 a.m.
Equidistant hypersurfaces in complex hyperbolic space.
William M. Goldman*, University of Maryland, College Park
(8505318)

8:30 a.m.
Continued fractions with respect to Hecke groups.
Andrew Haas*, University of Connecticut, Storrs
(8501193)

Wednesday August 9, 1989, 7:30 a.m.8:55 a.m.
MAA Panel Discussion
Are we teaching majors the right mathematics? Are we teaching it the right way?
Bettye Anne Case, Florida State University
James R.C. Leitzel, Ohio State University
Lynn A. Steen, St. Olaf College

Wednesday August 9, 1989, 9:10 a.m.10:00 a.m.
AMSMAA Invited Address
The principle of duality in functional analysis.
Shizuo Kakutani*, Yale University

Wednesday August 9, 1989, 10:15 a.m.11:15 a.m.
MAA Earle Raymond Hedrick Lectures, Lecture II
The mathematics of mixing things up: Reversible chains and eigenvlues of the Laplacian.
Persi W. Diaconis*, Harvard University

Wednesday August 9, 1989, 12:15 p.m.1:15 p.m.
AMS Colloquium Lectures: Lecture III
Geometry, groups, and selfsimilar tilings.
William P. Thurston*, Princeton University

Wednesday August 9, 1989, 12:15 p.m.2:05 p.m.
AMS Special Session on Free Boundary Problems and Partial Differential Equations, III

12:15 p.m.
Convexity properties of solutions in an nphase fluid problem.
Andrew Acker*, Wichita State University
(8503554)

12:45 p.m.
Crystal growth by Voronoi methods.
Fred Almgren*, Princeton University
Jean Taylor, Rutgers University, New Brunswick
(8504931)

1:15 p.m.
Stability of open channel sediment transport equations.
William McDougal, Oregon State University
Harold Parks*, Oregon State University
(8503577)

1:45 p.m.
A constant vorticity Riabouchinsky flow based on a variational principle.
Thomas K. DeLillo*, Wichita State University
Alan R. Elcrat, Wichita State University
Kenneth G. Miller, Wichita State University
(8507652)

Wednesday August 9, 1989, 1:20 p.m.2:30 p.m.
AMS Session on Analysis and Geometry

1:20 p.m.
Lemniscates and osculatory interpolation.
Donald Teets*, South Dakota School of Mines and Technology
Patrick Lang, Idaho State University
(8504130)

1:40 p.m.
Inclusions of H^1 in L^2.
G. Muraz, Institut Fourier de Mathematics, Cedex, France
P. Szeptycki*, University of Kansas
(8504632)

2:00 p.m.
Duality results in multiobjective optimization.
R. N. Mukherjee*, Banaras Hindu University, India
(8504904)

2:20 p.m.
The Coxeter group and the group of units of a checkered matrix ring.
Chul Kim*, North Carolina State University
(85099112)

Wednesday August 9, 1989, 1:25 p.m.3:15 p.m.
AMS Special Session on Mathematical Questions in Computational Geometry, II

1:25 p.m.
Stability analysis of curve and surface transformations.
R. T. Farouki*, IBM T. J. Watson Research Center, Yorktown Heights, New York
(85099110)

1:55 p.m.
Spiral arcs: An interpolation problem.
Harry McLaughlin*, Rensselaer Polytechnic Institute
Bruce Piper, Rensselaer Polytechnic Institute
(85099109)

2:25 p.m.
Informal Discussion

Wednesday August 9, 1989, 1:25 p.m.3:15 p.m.
AMS Special Session on Computational Number Theory and Applications, III

1:25 p.m.
Figures of merit for digital multistep pseudorandom numbers.
Debra A. Andr\'e, Pennsylvania State University, University Park
Gary L. Mullen*, Pennsylvania State University, University Park
Harald Niederreiter, Austrian Academy of Sciences, Austria
(8501137)

1:55 p.m.
Geodesic multidimensional continued fractions.
Jeffrey C. Lagarias*, AT&T Bell Laboratories, Murray Hill, New Jersey
(8501109)

2:25 p.m.
On the worstcase complexity of three algorithms for computing the Jacobi symbol.
Jeffrey Shallit*, Dartmouth College
(8501159)

2:55 p.m.
Dihedral cubic approximations and series for pi and CohenLenstra heuristics for class groups.
Daniel Shanks*, University of Maryland, College Park
(8501144)

Wednesday August 9, 1989, 1:30 p.m.2:20 p.m.
AMSMAAPME Invited Address
The mathematics of identification numbers.
Joseph A. Gallian*, University of Minnesota, Duluth

Wednesday August 9, 1989, 1:30 p.m.3:30 p.m.
MAA Minicourse #6 (Part B)
Group theory through art
Organizers:
Thomas Brylawski, University of North Carolina, Chapel Hill

Wednesday August 9, 1989, 1:30 p.m.3:30 p.m.
MAA Minicourse #8 (Part A)
Applications of the HP28S for experienced users
Organizers:
Thomas W. Tucker, Colgate University

Wednesday August 9, 1989, 2:35 p.m.3:25 p.m.
MAA Invited Address
The Riemann mapping nontheorem.
Nancy K. Stanton*, University of Notre Dame

Wednesday August 9, 1989, 3:40 p.m.4:40 p.m.
MAA Business Meeting

Wednesday August 9, 1989, 7:30 p.m.8:30 p.m.
PME J. Sutherland Frame Lecture
Entrainment of frequency: A recurring theme.
Jane Cronin Scanlon*, Rutgers University, New Brunswick
Thursday August 10, 1989

Thursday August 10, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on History of Orthogonal Polynomials, I

7:00 a.m.
Introduction

7:20 a.m.
Characterization theorems of orthogonal polynomials.
W. A. AlSalam*, University of Alberta
(8500135)

8:10 a.m.
Differential equations and zeros of orthogonal polynomials.
Martin E. Muldoon*, York University
(85033102)

Thursday August 10, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Mathematical Questions in Computational Geometry, III

7:00 a.m.
Informal Discussion

Thursday August 10, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Free Boundary Problems and Partial Differential Equations, IV

7:00 a.m.
Existence and geometry of solutions of a free boundary problem for the heat equation.
Andrew Acker, Wichita State University
Kirk Lancaster*, Wichita State University
(8503551)

7:30 a.m.
The onset of instability in the trapped drop problem.
Thomas I. Vogel*, Texas A\thsp\&\thsp M University, College Station
(8504950)

8:00 a.m.
Uniqueness of the solution to some free boundary problems for the Laplace equation.
David E. Tepper*, Bernard M. Baruch College, City University of New York
(8503534)

8:30 a.m.
Regularity theory for grad differential equations.
Ed Stredulinsky*, Lawrence University
Peter Laurence, University Degli Studii, Milano, Italy
(8503573)

Thursday August 10, 1989, 7:00 a.m.8:50 a.m.
AMS Special Session on Computational Number Theory and Applications, IV

7:00 a.m.
Subexponential class number algorithms.
Johannes Buchmann*, Universit\"at des Saarlandes, Federal Republic of Germany
(8501178)

7:30 a.m.
An open architecture number sieve.
H. C. Williams*, University of Manitoba
(8501107)

8:00 a.m.
Program checkers for modular exponentiation.
Kireeti Kompella*, University of Southern California
(8501179)

8:30 a.m.
Practical zeroknowledge proofs: Giving hints and using deficiencies.
Joan Boyar*, University of Chicago
Katalin Friedl, University of Chicago
Carsten Lund, University of Chicago
(8506808)

Thursday August 10, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #7 (Part B)
HP28S short course for nearly inexperienced users
Organizers:
Jerold Mathews, Iowa State University

Thursday August 10, 1989, 7:00 a.m.9:00 a.m.
MAA Minicourse #9 (Part A)
A seminar on women in mathematics
Organizers:
Miriam P. Cooney, Saint Mary's College, Notre Dame, Indiana

Thursday August 10, 1989, 7:00 a.m.8:50 a.m.
AMS Session on Analysis and Probability

7:00 a.m.
Waiting times for runs of rare events.
Anant Godbole*, Michigan Technological University
(8506075)

7:20 a.m.
Maximum and minimum sets for some geometric mean values.
Richard E. Pfiefer*, San Jose State University
(8506024)

7:40 a.m.
Statistical tests for diagonality of a covariance matrix.
Jack Tomsky*, Lockheed Missiles and Space Company, Palo Alto, California
(8506201)

8:00 a.m.
Computation of gradients in Banach spaces.
Ivie Stein, Jr.*, University of Toledo
(8506565)

8:20 a.m.
Factorization without arithmetic.
Robert J. Valenza*, Claremont McKenna College
(8506862)

8:40 a.m.
Supermartingales and superadditive games: An additivization alternative to Gilboa's.
Thomas E. Armstrong*, University of Maryland, Baltimore County
(85099111)

Thursday August 10, 1989, 7:00 a.m.8:55 a.m.
MAA Panel Discussion
The role of the computer in calculus reform
Moderators:
Eugene A. Herman, Grinnell College
s:
Robert L. Devaney, Boston University
Kenneth R. Hoffman, Hampshire College
David A. Smith, Duke University and chair of CCIME
Paul Zorn, St. Olaf College

Thursday August 10, 1989, 7:40 a.m.8:30 a.m.
MAA Invited Address
The number of solutions of Diophantine equations.
Wolfgang M. Schmidt*, University of Colorado, Boulder

Thursday August 10, 1989, 9:10 a.m.10:00 a.m.
AMSMAA Invited Address
alpha x^2 + hxy + cy^2 = n.
John H. Conway*, Princeton University

Thursday August 10, 1989, 10:15 a.m.11:15 a.m.
MAA Earle Raymond Hedrick Lectures, Lecture III
The mathematics of mixing things up: Modern Markov chain theory.
Persi W. Diaconis*, Harvard University

Thursday August 10, 1989, 12:15 p.m.1:45 p.m.
AMS Progress in Mathematics Lecture
Mathematical problems of liquid crystals.
Haim Brezis*, Rutgers University, New Brunswick and Universite de Paris VIP, France
(85058120)
Liquid crystals.
Haim Brezis*, Rutgers University and Universite de Paris VI, France

Thursday August 10, 1989, 12:15 p.m.2:15 p.m.
MAA Minicourse #8 (Part B)
Applications of the HP28S for experienced users
Organizers:
Thomas W. Tucker, Colgate University

Thursday August 10, 1989, 12:15 p.m.2:15 p.m.
MAA Minicourse #9 (Part B)
A seminar on women in mathematics
Organizers:
Miriam P. Cooney, Saint Mary's College, Notre Dame, Indiana

Thursday August 10, 1989, 2:00 p.m.3:00 p.m.
AMS Colloquium Lectures: Lecture IV
Geometry, groups, and selfsimilar tilings.
William P. Thurston*, Princeton University

Thursday August 10, 1989, 2:00 p.m.4:10 p.m.
AMS Special Session on History of Orthogonal Polynomials, II

2:00 p.m.
Orthogonal polynomials and numerical quadrature.
Walter Gautschi*, Purdue University, West Lafayette
(8500199)

2:30 p.m.
History of asymptotics of orthogonal polynomials.
Mourad E. H. Ismail*, University of South Florida
(8500114)

3:00 p.m.
Chebyshev's work.
Ranjan Roy*, Beloit College
(8503367)

3:30 p.m.
Classical orthogonal polynomials.
Richard A. Askey*, University of Wisconsin, Madison
(8500198)

Thursday August 10, 1989, 3:00 p.m.4:50 p.m.
AMS Special Session on Mathematical Questions in Computational Geometry, IV

3:00 p.m.
Informal Discussion

Thursday August 10, 1989, 3:00 p.m.4:50 p.m.
AMS Special Session on Computational Number Theory and Applications, V

3:00 p.m.
Simplification of nested radicals.
Susan Landau*, Wesleyan University
(8501206)

3:30 p.m.
Deterministic factorization of polynomials over special finite fields.
Eric Bach*, University of Wisconsin, Madison
(8501270)

4:00 p.m.
On the deterministic complexity of factoring polynomials over finite fields.
Victor Shoup*, University of Wisconsin, Madison
(8501255)

4:30 p.m.
Some alternate strategies for generating irreducible polynomials over finite fields.
Gove Effinger*, Skidmore College
(8501205)

Thursday August 10, 1989, 3:00 p.m.4:30 p.m.
AMS Session on Analysis, III

3:00 p.m.
On the dimension of fractal functions defined on subsets of R^n, n > 1.
Peter R. Massopust*, West Georgia College
(85026101)

3:20 p.m.
Best twinvalue regions for continued fractions K(a_n/1).
Walter M. Reid*, University of Wisconsin, Eau Claire
(85030104)

3:40 p.m.
Openrestriction decomposition property.
Ridgley Lange*, Weidman, Michigan
(85047106)

4:00 p.m.
Quasicompact operators.
Amir Maleki*, University of the Virgin Islands
(85099108)

4:20 p.m.
Sampling expansions in discrete WalshFourier analysis.
Nasser Dastrange*, Buena Vista College
(85094100)
Inquiries: meet@ams.org