AMS Meeting Full Program
Current as of Tuesday, April 12, 2005 15:08:43
Joint Summer Meeting
Columbus, OH, August 811, 1990
Meeting #859
Associate secretaries: W Wistar Comfort, AMS wcomfort@wesleyan.edu
Kenneth A Ross, MAA ross@math.uoregon.edu
Sunday August 5, 1990
Monday August 6, 1990
Tuesday August 7, 1990

Tuesday August 7, 1990, 7:30 a.m.3:00 p.m.
MAA Board of Governors 
Tuesday August 7, 1990, 8:00 a.m.4:00 p.m.
AMS Short Course: Part 2

8:00 a.m.
Introductory overview of mathematical Go endgames.
Elwyn R. Berlekamp*, University of California, Berkeley 
9:45 a.m.
Games and codes.
Vera S. Pless*, University of Illinois, Chicago 
1:00 p.m.
Complexity of games.
Aviezri S. Fraenkel*, Weizmann Institute of Science, Israel 
2:45 p.m.
..., Welter's Game, Sylver Coinage, DotsandBoxes,...
Richard J. Nowakowski*, Dalhousie University

8:00 a.m.

Tuesday August 7, 1990, 1:00 p.m.6:00 p.m.
AMS Council 
Tuesday August 7, 1990, 3:00 p.m.5:00 p.m.
MAA Section Officers 
Tuesday August 7, 1990, 7:15 p.m.9:00 p.m.
Joint Policy Board for Mathematics: National Meetings of Department Heads
Curriculum reformHow does a department chair cause it to happen?
Panelists:
Thomas W. Tucker, Colgate University
William H. Jaco, Executive Director of the AMS
Michael C. Reed, Duke University
Wednesday August 8, 1990

Wednesday August 8, 1990, 7:30 a.m.8:30 a.m.
Opening Ceremonies 
Wednesday August 8, 1990, 8:55 a.m.9:45 a.m.
MAA Invited Address
The seventyfifth anniversary celebration.
G. Baley Price*, University of Kansas 
Wednesday August 8, 1990, 9:55 a.m.10:00 a.m.
Plaque Ceremony 
Wednesday August 8, 1990, 10:10 a.m.11:00 a.m.
MAA Invited Address
Was Newton's calculus just a deadend? Maclaurin and the Scottish connection.
Judith V. Grabiner*, Pitzer College, Scotland 
Wednesday August 8, 1990, 12:30 p.m.1:00 p.m.
MAA Invited Address
Mathematics and computation: Proliferation and fragmentation.
Wade Ellis, Jr.*, West Valley College 
Wednesday August 8, 1990, 1:10 p.m.1:40 p.m.
MAA Invited Address
Has progress in mathematics slowed down?
Paul R. Halmos*, Santa Clara University 
Wednesday August 8, 1990, 1:50 p.m.2:20 p.m.
MAA Invited Address
The contribution of mathematics to education.
Peter J. Hilton*, State University of New York, Binghamton 
Wednesday August 8, 1990, 2:30 p.m.3:00 p.m.
MAA Invited Address
The last 75 years: Giants of applied mathematics.
Cathleen S. Morawetz*, Courant Institute of Mathematical Sciences, New York University 
Wednesday August 8, 1990, 3:45 p.m.4:45 p.m.
Mathematical Circus
Thursday August 9, 1990

Thursday August 9, 1990, 7:00 a.m.7:30 a.m.
MAA Special Presentation

Thursday August 9, 1990, 7:00 a.m.10:50 a.m.
AMS Special Session on Combinatorics, I

7:00 a.m.
Voltagecurrent duality.
Dan Archdeacon*, University of Vermont
(85905129) 
7:30 a.m.
Bounds on the distanced domination number.
Joan P. Hutchinson*, Macalester College
(85905109) 
8:00 a.m.
Subgraphs with crossing number 2.
Dan McQuillan, Carleton University
R. B. Richter*, Carleton University
(85905161) 
8:30 a.m.
Graphs containing crossing number 2 graphs.
Richard Vitray*, Appalachian State University
(85905168) 
9:00 a.m.
Ideal secret sharing schemes and matroids.
Ernest F. Brickell*, Sandia National Laboratories
Daniel M. Davenport, Sandia National Laboratories
(8590599) 
9:30 a.m.
Howell designs with subdesigns.
J. H. Dinitz*, University of Vermont
E. R. Lamken, Institute for Defense Analyses
(85905149) 
10:00 a.m.
Mappings of sets of pairwise orthogonal orthomorphisms.
Robert Roth*, Emory University
(8590582) 
10:30 a.m.
Singularity probabilities for random {+ minus}matrices.
Jeff Kahn*, Rutgers University, New Brunswick
J\'anos Koml\'os, Rutgers University, New Brunswick
Endre Szemer\'edi, Rutgers University, New Brunswick
(8590584)

7:00 a.m.

Thursday August 9, 1990, 7:00 a.m.8:50 a.m.
AMS Special Session on Algebraic Geometry, I

7:00 a.m.
Valuations and convergence of formal functions.
Mark Spivakovsky*, Harvard University
(8591367) 
7:30 a.m.
Weak CMC subsets and orderings of fields.
Marie A. Vitulli*, University of Oregon
(85913108) 
8:00 a.m.
Jet bundles and curves in Grassmannians.
David Perkinson*, Reed College
(85914120) 
8:30 a.m.
Automorphisms of cuspidal K3like surfaces in low characteristics.
Brian Harbourne*, University of Nebraska, Lincoln
(8591477)

7:00 a.m.

Thursday August 9, 1990, 7:00 a.m.9:00 a.m.
MAA Minicourse #1: Part A
Using metacognitive strategies to improve instruction
Organizers:
Genevieve Knight, Coppin State College 
Thursday August 9, 1990, 7:00 a.m.9:00 a.m.
MAA Minicourse #2: Part A
Planning, funding, and administering teacher enhancement projects
Organizers:
T. Christine Stevens, St. Louis University 
Thursday August 9, 1990, 7:00 a.m.11:00 a.m.
MAA CUPM Subcommittee on Symbolic Computer Systems Poster Session
What students learn in the symbolic computing environment 
Thursday August 9, 1990, 7:05 a.m.11:00 a.m.
MAA Session on The Interface Between Mathematics and Operations Research, Part A

7:05 a.m.
Operations research in the shipping industry.
Ken Bloom*, StoltNielsen Inc., Greenwich, Connecticut 
8:15 a.m.
Operations research at the United States Coast Guard Academy.
Ted Lindstrom*, United States Coast Guard Academy
Ernest J. Manfred, United States Coast Guard Academy 
8:40 a.m.
Optimization: The world as a system of equations.
Patrick T. Harker*, University of Pennsylvania 
9:05 a.m.
An improved counterexample to the rudimentary primal algorithm.
Robert Haas*, Case Western Reserve University
Harvey M. Salkin, Case Western Reserve University
Kamlesh Mathur, Case Western Reserve University 
9:30 a.m.
Waiting in line: The mathematics of queuing.
Karen J. Schroeder*, Bentley College 
10:00 a.m.
Modeling and analysis of telecommunications systems.
Shlomo Halfin*, Bell Communications Research Inc., Morristown, New Jersey

7:05 a.m.

Thursday August 9, 1990, 7:30 a.m.10:50 a.m.
AMS Special Session on Dynamics of Biological Systems, I

7:30 a.m.
The transition from bursting to continuous spiking in a model for excitable membranes.
David Terman*, Ohio State University, Columbus
(8599285) 
8:00 a.m.
An ``averaged'' model for parabolic bursting oscillations.
John Rinzel*, National Institute of Health
Humberto CarrilloCalvet, Universidad Nacional Autonoma de Mexico
Steven M. Baer, Arizona State University
(8599256) 
8:30 a.m.
A geometric description of echo.
G. Bard Ermentrout*, University of Pittsburgh, Pittsburgh
John Rinzel, National Institute of Health
(8599292) 
9:00 a.m.
Travelling wave solutions for a bistable evolutionary ecology model.
Roger Lui*, Worcester Polytechnic Institute
(8593571) 
9:30 a.m.
Existence of travelling wave solutions for reaction diffusion systems.
Konstantin M. Mischaikow*, Georgia Institute of Technology
(85935144) 
10:00 a.m.
The existence of infinitely many traveling front and back waves in the FitzHughNagumo equations.
Bo Deng*, University of Nebraska, Lincoln
(85935105) 
10:30 a.m.
Discussion

7:30 a.m.

Thursday August 9, 1990, 7:50 a.m.8:40 a.m.
MAAAAAS Invited Address
Lost and found mathematics.
Richard A. Askey*, University of Wisconsin, Madison 
Thursday August 9, 1990, 7:50 a.m.8:40 a.m.
MAA CUPM Subcommittee on Quantitative Literacy Requirements Panel Discussion
Quantitative literacy 
Thursday August 9, 1990, 8:00 a.m.10:50 a.m.
AMS Special Session on Ring Theory, I

8:00 a.m.
The kproduct of slender modules.
John Dauns*, Tulane University
Laszlo Fuchs, Tulane University
(8591657) 
8:30 a.m.
Finitely generated noncosmall modules.
Stanley S. Page*, University of British Columbia
(8591672) 
9:00 a.m.
Intermission 
10:00 a.m.
Permutation identity rings.
Gary F. Birkenmeier*, University of Southwestern Louisiana
Henry Heatherly, University of Southwestern Louisiana
(8591626) 
10:30 a.m.
Distributive modules which are cyclic.
Vahap Erdogdu*, Middle East Technical University, Turkey
(8591308)

8:00 a.m.

Thursday August 9, 1990, 8:00 a.m.10:50 a.m.
AMS Special Session on Group Theory, I

8:00 a.m.
Isomorphy problem of integral group rings.
Hans J. Zassenhaus*, Ohio State University, Columbus
(8592045) 
8:30 a.m.
A conjecture on character degrees.
Michael J. J. Barry*, Allegheny College
(8592022) 
9:00 a.m.
kcharacters and the group determinant.
Kenneth W. Johnson*, Pennsylvania State University, Ogontz and Iowa State University
(8592013) 
9:30 a.m.
Infinite Frobenius groups.
Michael J. Collins*, Mathematical Institute, England
(8592036) 
10:00 a.m.
Powers of varieties and faithful representations of groups.
Samuel M. Vovsi*, Rutgers University, New Brunswick
(8592017) 
10:30 a.m.
The integral group ring problem.
Leonard L. Scott, Jr.*, University of Virginia
(8592037)

8:00 a.m.

Thursday August 9, 1990, 8:00 a.m.9:30 a.m.
MAA Student Chapter Panel Discussion 
Thursday August 9, 1990, 8:00 a.m.9:00 a.m.
AWM Panel Discussion
Enrichment programs in urban public schools
Panelists:
Harvey Keynes, Talented Youth Mathematics Project
Jacquelin Rivers, The Algebra Project
Paul J. Sally, Jr., Young Scholars Program 
Thursday August 9, 1990, 8:55 a.m.9:45 a.m.
AMSMAA Invited Address
Algebra as a means of understanding mathematics.
Saunders Mac Lane*, University of Chicago 
Thursday August 9, 1990, 9:00 a.m.9:45 a.m.
AWM Membership Meeting \& Prize Session 
Thursday August 9, 1990, 9:15 a.m.11:15 a.m.
MAA Minicourse #3: Part A
A seminar on women in mathematics
Organizers:
Miriam P. Cooney, St. Mary's College 
Thursday August 9, 1990, 9:15 a.m.11:15 a.m.
MAA Minicourse #4: Part A
A calculus laboratory using Mathematica
Organizers:
Michael Barry, Allegheny College
Benjamin Haytock, Allegheny College
Richard McDermot, Allegheny College 
Thursday August 9, 1990, 9:15 a.m.11:15 a.m.
MAA Minicourse #5: Part A
Using history in teaching calculus
Organizers:
V. Frederick Rickey, United States Military Academy 
Thursday August 9, 1990, 10:00 a.m.10:50 a.m.
MAANCTM Invited Address
Mathematics educationyesterday, today, and tomorrow.
John A. Dossey*, Illinois State University 
Thursday August 9, 1990, 11:00 a.m.12:00 p.m.
National Science Foundation 
Thursday August 9, 1990, 12:15 p.m.1:15 p.m.
MAA Earle Raymond Hedrick Lectures: Lecture I
Spirals from Theodorus of Cyrene to metachaos. Spirals old and new.
Philip J. Davis*, Brown University 
Thursday August 9, 1990, 1:30 p.m.2:20 p.m.
MAAPME Invited Address
Problems for all seasons.
Ivan Niven*, University of Oregon 
Thursday August 9, 1990, 1:30 p.m.3:30 p.m.
MAA Minicourse #1: Part B
Using metacognitive strategies to improve instruction
Organizers:
Genevieve Knight, Coppin State College 
Thursday August 9, 1990, 1:30 p.m.3:30 p.m.
MAA Minicourse #2: Part B
Planning, funding, and administering teacher enhancement projects
Organizers:
T. Christine Stevens, St. Louis University 
Thursday August 9, 1990, 1:30 p.m.4:20 p.m.
MAA Session on Toward Equity and Excellence: Efforts to Increase the Number of Minorities and Women in the Profession

1:30 p.m.
MathConn 89 and MathConn 90: Two successful mathematics awareness days for seventh and eighth grade girls and their teachers.
Regina Baron Brunner*, Cedar Crest College, Pennsylvania 
2:00 p.m.
Encouraging women and older students in mathematics: A math anxiety reduction program.
Antonella Cupillari*, Pennsylvania State University, ErieBehrend College 
2:30 p.m.
Multicultural factors in mathematics education.
Barbara S. Rice*, Alabama A & M University 
3:00 p.m.
NCI summer enrichment program.
Gloria F. Gilmer*, MathTech Inc., Milwaukee, Wisconsin 
3:30 p.m.
The efforts of a few can help the many.
Sherrie J. Nicol*, University of Wisconsin, Platteville 
4:00 p.m.
A family of equity programs.
Claudia L. PinterLucke*, California Polytechnic State University

1:30 p.m.

Thursday August 9, 1990, 1:30 p.m.4:20 p.m.
MAA Session on The Interface Between Mathematics and Operations Research, Part B

1:30 p.m.
Modeling performance in emergency vehicle systems: A link between mathematics and operations research.
Jeff Goldberg*, University of Arizona 
2:40 p.m.
Using synergism to generate new classroom applications of mathematics.
Miguel Paredes*, University of TexasPan American 
3:05 p.m.
What mathematics teaches the simulationist, and vice versa.
Diane Driscoll Schwartz*, Ithaca College 
3:30 p.m.
Four counterexamples to heuristic algorithms for the traveling salesman problem.
Robert Haas, Case Western Reserve University
Harvey M. Salkin*, Case Western Reserve University
Kamlesh Mathur, Case Western Reserve University 
4:00 p.m.
Movie: Operations research + you = an exciting career.

1:30 p.m.

Thursday August 9, 1990, 1:30 p.m.3:00 p.m.
MAA CUPM Subcommittee on Symbolic Computer Systems Panel Discussion
The pedagogical impact of computer algebra systems on college mathematics curricula 
Thursday August 9, 1990, 2:30 p.m.4:30 p.m.
PME Contributed Paper Session

2:30 p.m.

2:30 p.m.

Thursday August 9, 1990, 2:35 p.m.4:05 p.m.
AMS Progress in Mathematics Lecture
Viscosity solutions of partial differential equations.
Michael G. Crandall*, University of California, Santa Barbara
(85935169) 
Thursday August 9, 1990, 3:30 p.m.4:20 p.m.
MAA Special Lecture

Thursday August 9, 1990, 3:30 p.m.4:20 p.m.
MAA CUPM Subcommittee on Symbolic Computer Systems Special Presentation
Symbolic computing in undergraduate mathematics: Symbols, pictures, numbers, and insights 
Thursday August 9, 1990, 3:45 p.m.5:45 p.m.
MAA Minicourse #3: Part B
A seminar on women in mathematics
Organizers:
Miriam P. Cooney, Saint Mary's College 
Thursday August 9, 1990, 3:45 p.m.5:45 p.m.
MAA Minicourse #4: Part B
A calculus laboratory using Mathematica
Organizers:
Michael Barry, Allegheny College
Benjamin Haytock, Allegheny College
Richard McDermot, Allegheny College 
Thursday August 9, 1990, 3:45 p.m.5:45 p.m.
MAA Minicourse #5: Part B
Using history in teaching calculus
Organizers:
V. Frederick Rickey, United States Military Academy 
Thursday August 9, 1990, 6:30 p.m.8:00 p.m.
AMSMAAMSEB Evening of Dialogue
Mathematics education 
Thursday August 9, 1990, 7:30 p.m.8:30 p.m.
PME J. Sutherland Frame Lecture
Combinatorics and computers: Coping with finiteness.
Ronald L. Graham*, AT&T Bell Laboratories, Murray Hill, New Jersey
Friday August 10, 1990

Friday August 10, 1990, 7:00 a.m.9:50 a.m.
AMS Special Session on Combinatorial Games

7:00 a.m.
Dots and boxes.
R. J. Nowakowski*, Dalhousie University
(85905136) 
7:30 a.m.
On the cookie game.
James Propp, George Washington University
Daniel Ullman*, George Washington University
(85905137) 
8:00 a.m.
Nimdi games.
U. Blass, Weizmann Institute of Science, Israel
A. S. Fraenkel*, Weizmann Institute of Science, Israel
M. Lorberbom, Weizmann Institute of Science, Israel
(8590573) 
8:30 a.m.
Invading corridors of territory in Go.
Elwyn Berlekamp, University of California, Berkeley
David Wolfe*, University of California, Berkeley
(85990145) 
9:00 a.m.
Classical partisan theory extended to loopy games.
Elwyn Berlekamp*, University of California, Berkeley
(85905138) 
9:30 a.m.
Mathematical Kayles.
William L. Sibert, Stanford, Connecticut
John H. Conway*, Princeton University
(85990122)

7:00 a.m.

Friday August 10, 1990, 7:00 a.m.9:50 a.m.
AMS Special Session on Group Theory, II

7:00 a.m.
Strongly pembedded subgroups of finite simple groups.
Daniel Gorenstein*, Rutgers University, New Brunswick
Richard Lyons, Rutgers University, New Brunswick
Ronald Solomon, Ohio State University, Columbus
(8592039) 
7:30 a.m.
The maximal subgroups of the Chevalley groups of type F_4(F),char(F)#2.3.
Kay Magaard*, California Institute of Technology
(8592016) 
8:00 a.m.
On the influence of maximal subgroups on the structure of a finite group: Some new results.
Prabir Bhattacharya*, University of Nebraska, Lincoln
N. P. Mukherjee, Jawaharlal Nehru University, India
(8592018) 
8:30 a.m.
The Schur index of projective characters of symmetric and alternating groups.
Alexandre Turull*, University of Miami
(8592015) 
9:00 a.m.
The representation theory of fully groupgraded algebras.
Paul Boisen*, University of Chicago
(8592069) 
9:30 a.m.
On a combinatorial problem associated with the odd order theorem.
George Glauberman*, University of Chicago
Simon P. Norton, University of Cambridge, England
(8592033)

7:00 a.m.

Friday August 10, 1990, 7:00 a.m.9:10 a.m.
AMS Session on Graph Theory and Combinatorics

7:00 a.m.
The multiintersection number of a graph.
Frank Harary*, New Mexico State University, Las Cruces
(8590559) 
7:15 a.m.
A problem of degrees in graphs.
Lisa Hansen, Western Michigan University
Michelle Schultz*, Western Michigan University
(85905133) 
7:30 a.m.
Subgraph distance in graphs.
Gary Chartrand*, Western Michigan University
Garry Johns, Saginaw Valley State University
Karen S. Novotny, Grand Valley State University
Ortrud R. Oellermann, University of Natal, Republic of South Africa
(85905131) 
7:45 a.m.
Clique representations of chordallike graphs.
Charles Carraher*, Wright State University
Terry McKee, Wright State University
(8590575) 
8:00 a.m.
Planarity of nsubgraph distance graphs.
Gary Chartrand, Western Michigan University
H\'ector Hevia, Western Michigan University
Elzbieta B. Jarrett*, Western Michigan University
Donald W. Vanderjagt, Grand Valley State University
(85905132) 
8:15 a.m.
A different algorithm for the detection of 3manifolds.
John Emert*, Ball State University
Lawrence Husch, University of Tennessee, Knoxville
(85905125) 
8:30 a.m.
Routings for involutions of a hypercube.
Alan P. Sprague*, University of Alabama, Birmingham
Hisao Tamaki, Ibaraki University, Japan
(8590597) 
8:45 a.m.
Smallest tournaments with given abelian automorphism group.
William C. Arlinghaus*, Lawrence Technical University
(85905117) 
9:00 a.m.
A combinatorial approach to temporal reasoning.
Alexander Belfer, BarIlan University, Israel
Martin Charles Golumbic*, IBM Israel Scientific Center, Israel
(8590534)

7:00 a.m.

Friday August 10, 1990, 7:00 a.m.8:30 a.m.
MAA Session
Modeling
Organizers:
Ben A. Fusaro, Salisbury State University 
Friday August 10, 1990, 7:20 a.m.9:45 a.m.
AMS Session on Geometry, Topology and Infinite Combinatorics

7:20 a.m.
The ptorsion of the FarrellTate cohomology of the mapping class group cap gamma_(p1)/2.
Yining Xia*, Ohio State University, Columbus
(85955158) 
7:35 a.m.
Minimal surfaces satisfying the spherical Ricci condition.
Gene Douglas Johnson*, Franklin & Marshall College
(85953155) 
7:50 a.m.
On a conjecture of Nitsche.
Gregory D. Crow*, John Carroll University
(8595352) 
8:05 a.m.
Consequences of the lattice pentagon property.
Stanley Rabinowitz*, Westford, Massachusetts
(85952142) 
8:20 a.m.
Euclidean hypersurfaces with reflection properties.
Daniel Drucker*, Wayne State University
(85953106) 
8:35 a.m.
Lattice realcompactifications.
James Camacho, Jr.*, Jersey City State College
(85928143) 
8:50 a.m.
A note on minimal cover refinable spaces.
Gangadhar Hiremath*, Talladega College
(8595495) 
9:05 a.m.
Connectedness of selfsimilar sets.
Gary Lewellen*, Appalachian State Univesity
(8595451) 
9:20 a.m.
Nonhomeomorphic disjoint spaces whose union is omega*.
W. W. Comfort*, Wesleyan University
Akio Kato, National Defense Academy, Japan
(85954111) 
9:35 a.m.
Measurable cardinals and category bases.
Andrzej Szymanski*, Slippery Rock University of Pennsylvania
(8590449)

7:20 a.m.

Friday August 10, 1990, 7:30 a.m.9:50 a.m.
AMS Special Session on Dynamics of Biological Systems, II

7:30 a.m.
Resonance and phaselocking in excitable systems.
Hans G. Othmer*, University of Utah
(85992153) 
8:00 a.m.
Computer simulations of excitation in an anatomically based model of the ventricular conduction system.
Andrew E. Pollard*, Nora Eccles Harrison Cardiovascular Research and Training Insitute, University of Utah
(8599286) 
8:30 a.m.
A dynamical systems analysis of a population genetics model of learning.
Steven R. Dunbar*, University of Nebraska, Lincoln
(85992123) 
9:00 a.m.
Applications of the stability index.
Robert Gardner*, University of Massachusetts, Amherst
(8593568) 
9:30 a.m.
Travelling waves in fast/slow systems.
Christopher Jones*, University of Maryland, College Park
Nancy Kopell, Boston University
(85934128)

7:30 a.m.

Friday August 10, 1990, 7:30 a.m.9:30 a.m.
MAA Minicourse #6: Part A
Writing to learn mathematics
Organizers:
Agnes Azzolino, Middlesex County College 
Friday August 10, 1990, 7:30 a.m.9:30 a.m.
MAA Minicourse #7: Part A
Exploring mathematics with the NeXT computer
Organizers:
Charles G. Fleming, Eastern Illinois University
Judy D. Halchin, Eastern Illinois University 
Friday August 10, 1990, 7:30 a.m.9:30 a.m.
MAA Minicourse #8: Part A
A mathematician's introduction to the HP48SX scientific expandable calculator for firsttime users
Organizers:
Don LaTorre, Clemson University
John Kenelly, Clemson University 
Friday August 10, 1990, 7:30 a.m.9:30 a.m.
MAA Minicourse #9: Part A
Starting, funding and sustaining mathematics laboratories
Organizers:
James E. White, Kenyon College 
Friday August 10, 1990, 7:30 a.m.9:55 a.m.
MAA Session on Liberal Arts Mathematics Courses, Part A

7:30 a.m.
Using elementary modeling with graphs and networks as the basis of a liberal arts mathematics course.
Helen Christensen*, Loyola College, Maryland 
7:45 a.m.
A course in graph modeling for liberal arts students.
Anne E. Brown*, Saint Mary's College, Indiana 
8:00 a.m.
A course in the theory of voting.
Roger B. Nelsen*, Lewis & Clark College 
8:15 a.m.
An accessible combinatorics module for liberal arts students.
Emelie Kenney*, Siena College, New York 
8:30 a.m.
Customized student papers in liberal arts mathematics.
Robert Bumcrot*, Hofstra University 
8:45 a.m.
Probability and calculus in a liberal arts mathematics course.
Kay Gura*, Ramapo College of New Jersey
Giovanni Viglino, Ramapo College of New Jersey 
9:00 a.m.
Using cooperative learning with oral protocols in mathematics for liberal arts students.
G. Joseph Wimbish*, Huntingdon College and University of Alabama 
9:15 a.m.
Optimization without calculus.
James W. Petticrew*, University of TexasPan American 
9:30 a.m.
How mathematics grows.
Jerry D. Taylor*, Campbell University 
9:45 a.m.
A tour in knot theory.
Stefanos Gialamas*, Columbia College, Chicago

7:30 a.m.

Friday August 10, 1990, 7:50 a.m.8:40 a.m.
AMS Invited Address
The role of microlocal analysis in PDE.
Michael E. Taylor*, University of North Carolina, Chapel Hill
(85935100) 
Friday August 10, 1990, 8:00 a.m.9:50 a.m.
MAA Committee on the Teaching of Undergraduate Mathematics Panel Discussion
Research in learning undergraduate mathematics
Moderators:
Lida K. Barrett, Mississippi State University
s:
Joan FerriniMundy, University of New Hampshire and Program Director at NSF
James J. Kaput, Southeastern Massachusetts University 
Friday August 10, 1990, 8:00 a.m.9:50 a.m.
MAA Committee on Computers in Mathematics Education Panel Discussion
Visualization project
Moderators:
Walter Zimmermann, University of the Pacific
s:
Herman E. Gollwitzer, Drexel University
Valerie A. miller, Georgia State University 
Friday August 10, 1990, 8:15 a.m.9:50 a.m.
PME Contributed Paper Session

8:15 a.m.

8:15 a.m.

Friday August 10, 1990, 8:55 a.m.9:45 a.m.
AMS Invited Address
Statistical mechanics of Coulomb systems.
Joseph G. Conlon*, University of Michigan, Ann Arbor
(85982101) 
Friday August 10, 1990, 10:05 a.m.11:00 a.m.
AMS Business Meeting 
Friday August 10, 1990, 11:00 a.m.12:00 p.m.
National Science Foundation 
Friday August 10, 1990, 11:15 a.m.12:15 p.m.
PME Council 
Friday August 10, 1990, 12:15 p.m.1:15 p.m.
MAA Earle Raymond Hedrick Lectures: Lecture II
Spirals from Theodorus of Cyrene to metachaos. Lessons from Euler.
Philip J. Davis*, Brown University 
Friday August 10, 1990, 1:30 p.m.2:20 p.m.
MAACMS Invited Address
Prime number records.
Paulo Ribenboim*, Queen's University 
Friday August 10, 1990, 1:30 p.m.3:50 p.m.
AMS Special Session on Combinatorics, II

1:30 p.m.
Graphs, games and structure theorems.
Neil Robertson, Ohio State University, Columbus
P. D. Seymour, Bellcore, Morristown, New Jersey
Robin Thomas*, Georgia Institute of Technology
(85905165) 
2:00 p.m.
Supeulerian and collapsible graphs.
Paul A. Catlin*, Wayne State University
(85905151) 
2:30 p.m.
A characterization in Z^n of unitdistance graphs in R^n.
Kiran B. Chilakamarri*, Ohio State University, Columbus
(85905146) 
3:00 p.m.
Loop transversals to linear codes.
Jonathan D. H. Smith*, Iowa State University
(8590523) 
3:30 p.m.
Large sets of disjoint tdesigns.
Yeow Meng Chee, University of Waterloo
Charles J. Colbourn, University of Waterloo
Steven C. Furino, University of Waterloo
Donald L. Kreher*, University of Wyoming
(8590580)

1:30 p.m.

Friday August 10, 1990, 1:30 p.m.3:20 p.m.
AMS Special Session on Algebraic Geometry, II

1:30 p.m.
Canonical resolution of hypersurface singularities of characteristic p.
T. T. Moh*, Purdue University, West Lafayette
(85913141) 
2:00 p.m.
Whose theorem is this?
Bruce Reznick*, University of Illinois, UrbanaChampaign
(8591498) 
2:30 p.m.
Topology of Milnor fibers of minimally elliptic singularities.
Lee J. McEwan*, Ohio State University, Mansfield
(85914130) 
3:00 p.m.
Semple's bundles of higherorder data.
Susan Jane Colley, Oberlin College
Gary Kennedy*, Oberlin College
(85914102)

1:30 p.m.

Friday August 10, 1990, 1:30 p.m.3:50 p.m.
AMS Special Session on Ring Theory, II

1:30 p.m.
Primitive ideals in enveloping algebras of classical simple Lie superalgebras.
Ian M. Musson*, University of Wisconsin, Milwaukee
(8591658) 
2:00 p.m.
The algebraic structure of linearly recursive sequences under Hadamard product.
Richard G. Larson, University of Illinois, Chicago
Earl J. Taft*, Rutgers University, New Brunswick
(8591605) 
2:30 p.m.
Classical localization in a Morita context.
Philippe Loustaunau, George Mason University
Jay Shapiro*, George Mason University
(8591661) 
3:00 p.m.
Value groups and distributivity.
Hans H. Brungs*, University of Alberta
Joachim Gr\"ater, Technische Universit\"at, Germany
(8591663) 
3:30 p.m.
Idempotents in matrix rings.
Christopher Barnett, Imperial College of Science & Technology, England
Victor Camillo*, University of Iowa
(8591628)

1:30 p.m.

Friday August 10, 1990, 1:30 p.m.3:30 p.m.
MAA Minicourse #6: Part B
Writing to learn mathematics
Organizers:
Agnes Azzolino, Middlesex County College 
Friday August 10, 1990, 1:30 p.m.3:30 p.m.
MAA Minicourse #7: Part B
Exploring mathematics with the NeXT computer
Organizers:
Charles G. Fleming, Eastern Illinois University
Judy D. Halchin, Eastern Illinois University 
Friday August 10, 1990, 1:30 p.m.3:30 p.m.
MAA Minicourse #9: Part B
Starting, funding and sustaining mathematics laboratories
Organizers:
James E. White, Kenyon College 
Friday August 10, 1990, 1:30 p.m.3:25 p.m.
AMS Session on Group Theory

1:30 p.m.
On automatic groups.
Kazem Mahdavi*, State University of New York, College at Potsdam
(8592042) 
1:45 p.m.
On the integral cohomology of split metacyclic groups.
Dean Larson*, Gonzaga University
(85920127) 
2:00 p.m.
Finite groups having chain difference one.
Ben Brewster, State University of New York, Binghamton
Michael B. Ward*, Bucknell University
Irene Zimmermann, Freiburg, Germany
(8592074) 
2:15 p.m.
Metabelian groups with all cyclic subgroups subnormal of bounded defect.
David J. Garrison*, IBM Corporation, Owego, New York
(8592066) 
2:30 p.m.
Thin bases for finite groups.
XingDe Jia*, Graduate School and University Center, City University of New York
(8592088) 
2:45 p.m.
Some characters of twisted wreath products.
George F. Yeh*, State University of New York, Binghamton
(85920103) 
3:00 p.m.
On exponential groups.
Patrick B. Chen*, John Carroll University
TaSun Wu, Case Western Reserve University
(85922152) 
3:15 p.m.
A special class of finite pgroups.
Matthew P. Fisher*, State University of New York, Binghamton
(85920166)

1:30 p.m.

Friday August 10, 1990, 1:30 p.m.3:40 p.m.
MAA Session on Liberal Arts Mathematics Courses, Part B

1:30 p.m.
Mathematical tools for critical thinking: A liberal arts mathematics course.
Curtis McKnight*, University of Oklahoma 
1:45 p.m.
Mathematics and the modern world: Core curriculum mathematics at a large public university.
Richard Mercer*, Wright State University 
2:00 p.m.
Developing students' mathematical power in liberal arts mathematics courses.
Roger H. Marty*, Cleveland State University 
2:15 p.m.
Mathematics for sensible living: Making connections with the adult world.
Constance M. Elson*, Ithaca College 
2:30 p.m.
"What is mathematics?" Is this the question for liberal arts students?
Bruce Williamson*, University of Wisconsin, River Falls 
2:45 p.m.
Reading and writing in a mathematical ideas course.
Richard Alan Gillman*, Valparaiso University 
3:00 p.m.
Can students in core requirement courses do mathematics on a creative level?
Rhonda L. Hatcher*, Saint Olaf College 
3:15 p.m.
A survey approach to liberal arts mathematics.
Dan Kalman*, Rancho Palos Verdes, California 
3:30 p.m.
Symmetry: Unifying abstraction, intuition and applications in a liberal arts mathematics course.
Thomas Q. Sibley*, Saint John's University, Minnesota

1:30 p.m.

Friday August 10, 1990, 1:30 p.m.3:50 p.m.
PME Contributed Paper Session

1:30 p.m.

1:30 p.m.

Friday August 10, 1990, 2:35 p.m.3:25 p.m.
MAASIAM Invited Address
Interior point methods for linear programming: An overview.
Richard A. Tapia*, Rice University 
Friday August 10, 1990, 2:50 p.m.3:50 p.m.
MAA Open Discussion on Consultants
Organizers:
Alan C. Tucker, SUNY at Stony Brook
John W. Kenelly, Clemson University
Richard Millman, Wright State University 
Friday August 10, 1990, 4:05 p.m.5:00 p.m.
MAA Business Meeting 
Friday August 10, 1990, 7:00 p.m.9:00 p.m.
AMS Committee on Science Policy Panel Discussion
Responsibilities of mathematicians in the implementation of the DAVID II Report
Saturday August 11, 1990

Saturday August 11, 1990, 7:00 a.m.10:50 a.m.
AMS Special Session on Combinatorics, III

7:00 a.m.
Delsarte's inequalities and tdesigns.
Richard M. Wilson*, California Institute of Technology
(85905154) 
7:30 a.m.
Association schemes on triples and a ternary algebra.
Dale M. Mesner, University of Nebraska, Lincoln
Prabir Bhattacharya*, University of Nebraska, Lincoln
(8590519) 
8:00 a.m.
Cycle ideals and tactical partitions of distanceregular graphs.
Aaron D. Meyerowitz*, Florida Atlantic University
(85905119) 
8:30 a.m.
A large set of designs on vector spaces.
D. K. RayChaudhuri, Ohio State University, Columbus
Erin J. Schram*, Ohio State University, Columbus
(8590579) 
9:00 a.m.
Structure theory of planar graphs embedded on nonplanar surfaces.
Bojan Mohar, University of Ljubljana, Yugoslavia
Neil Robertson*, Ohio State University, Columbus
Richard Vitray, Appalachian State University
(85905147) 
9:30 a.m.
Leafless trees in countable graphs.
Bogdan Oporowski*, Louisiana State University, Baton Rouge
(85905162) 
10:00 a.m.
Incidence matrices in geometric lattices.
Joseph P. S. Kung*, University of North Texas
(8590535) 
10:30 a.m.
Strong Tutte functions of matroids and graphs.
Thomas Zaslavsky*, State University of New York, Binghamton
(8590529)

7:00 a.m.

Saturday August 11, 1990, 7:00 a.m.10:50 a.m.
AMS Special Session on Ring Theory, III

7:00 a.m.
The enumeration of finite chain rings.
Yousif AlKhamees*, King Saud University, Saudi Arabia
(8591696) 
7:30 a.m.
Injectivity, Pinjectivity and Vrings.
Roger Yue Chi Ming*, University of Paris VII, France
(8591660) 
8:00 a.m.
CSmodules with chain conditions.
V. Camillo, University of Iowa
M. F. Yousif*, Ohio State University, Lima
(85916110) 
8:30 a.m.
Orders in blocked triangular matrix rings.
MingSun Li, Oberlin College
Julius Zelmanowitz*, University of California, Santa Barbara
(85916104) 
9:00 a.m.
Nonsingular retractable modules and their endomorphism rings.
Soumaya Khuri*, East Carolina University
(8591627) 
9:30 a.m.
On the weakinjectivity of rings.
Abdullah AlHuzali, Ohio University, Athens
S. K. Jain, Ohio University, Athens
S. R. LopezPermouth*, Ohio University, Athens
(8591687) 
10:00 a.m.
Class decomposition of modules.
Saad Mohamed*, Kuwait University, Kuwait
(8591644) 
10:30 a.m.
Modules with chain conditions on superfluous submodules.
Ibrahim AlKhazzi, University of Glasgow, Scotland
Patrick F. Smith*, University of Glasgow, Scotland
(8591664)

7:00 a.m.

Saturday August 11, 1990, 7:00 a.m.10:50 a.m.
AMS Special Session on Group Theory, III

7:00 a.m.
A numerical approach to rewriteability in finite groups.
Judy L. Leavitt, University of Illinois, UrbanaChampaign
Gary J. Sherman*, RoseHulman Institute of Technology
Mark E. Walker, University of Illinois, UrbanaChampaign
(8592083) 
7:30 a.m.
A special class of finite pgroups.
Wolfgang P. Kappe*, State University of New York, Binghamton
(8592032) 
8:00 a.m.
Property nu in groups.
James C. Beidleman*, University of Kentucky
(8592010) 
8:30 a.m.
Intersections of subgroup functors.
Ben Brewster*, State University of New York, Binghamton
(8592024) 
9:00 a.m.
On exact power margin groups.
LuiseCharlotte Kappe*, State University of New York, Binghamton
(8592031) 
9:30 a.m.
Leviproperties generated by varieties.
Robert Fitzgerald Morse*, IBM Corporation, Owega,New York
(8592038) 
10:00 a.m.
Nonnormal projectivities of metacyclic pgroups.
Charles Holmes*, Miami University
(8592041) 
10:30 a.m.
On the structure of dualstandard subgroups.
Stewart Stonehewer, Warwick University, England
Giovanni Zacher*, Universit\'a di Padova, Italy
(8592040)

7:00 a.m.

Saturday August 11, 1990, 7:00 a.m.9:00 a.m.
MAA Minicourse #10: Part A
CAS laboratory projects for calculus
Organizers:
Carl Leinbach, Gettysburg College 
Saturday August 11, 1990, 7:00 a.m.9:00 a.m.
MAA Minicourse #6: Part C
Writing to learn mathematics
Organizers:
Agnes Azzolino, Middlesex County College 
Saturday August 11, 1990, 7:00 a.m.10:10 a.m.
AMS Session on Algebraic Number Theory and Multiplicative Structures

7:00 a.m.
A note on fundamental properties of recurring series.
Joseph Arkin, United States Military Academy
David C. Arney, United States Military Academy
Frank R. Giordano, United States Military Academy
Rickey A. Kolb*, United States Military Academy
(8591154) 
7:15 a.m.
Explicit construction of certain metacyclic extensions.
Stanley Gurak*, University of San Diego
(85911113) 
7:30 a.m.
Small two variable exponential diophantine equations.
Robert Styer*, Villanova University
(85911163) 
7:45 a.m.
Narcissistic loops.
John F. Lamb, Jr.*, East Texas State University
(8591104) 
8:00 a.m.
Divisor functions and subgroups of dihedral groups.
David W. Jensen*, United States Air Force Academy
Michael K. Keane, United States Air Force Academy
(8591106) 
8:15 a.m.
The original manuscript of the generalized Fibonacci numbers combined with the generalized Pascal triangle.
Joseph Arkin*, United States Military Academy
David C. Arney, United States Military Academy
Frank R. Giordano, United States Military Academy
(8591147) 
8:30 a.m.
Supercube II.
Joseph Arkin, United States Military Academy
David C. Arney*, United States Military Academy
Frank R. Giordano, United States Military Academy
(8591148) 
8:45 a.m.
The structure of stochastic complements in irreducible stochastic matrices.
Peter M. Gibson*, University of Alabama, Huntsville
(8591562) 
9:00 a.m.
The eigenvalue problem without determinants.
William A. McWorter, Ohio State University, Columbus
Leroy F. Meyers*, Ohio State University, Columbus
(85915118) 
9:15 a.m.
The isometries of certain finite dimensional normed spaces.
Rohan Hemasinha*, University of West Florida
James R. Weaver, University of West Florida
(8591590) 
9:30 a.m.
Universal localization of wide tilde A_12, twisted pencils of matrices, and indecomposable modules.
Mike May, S. J.*, Cambridge, Massachusetts
(85916121) 
9:45 a.m.
Centroids and root systems.
Duncan J. Melville*, Yale University
(85917124)

7:00 a.m.

Saturday August 11, 1990, 7:30 a.m.9:55 a.m.
MAA Session on Liberal Arts Mathematics Courses, Part C

7:30 a.m.
A health sciences core curriculum sequence in mathematics.
Henry C. Foehl*, Philadelphia College of Pharmacy and Science, Pennsylvania 
7:45 a.m.
Mathematics for honors students in liberal arts and business.
Satish C. Bhatnager*, University of Nevada, Las Vegas
Leonard Zane, University of Nevada, Las Vegas 
8:00 a.m.
Creating new avenues for liberal arts students.
Dave Wells*, Pennsylvania State University, New Kensington Campus
Lynn Schmitt, Pennsylvania State University, New Kensington Campus 
8:15 a.m.
Other people's math: What every student should know.
Lucy L. Deephouse*, Trinity College, Connecticut
Timothy V. Craine, Trinity College, Connecticut 
8:30 a.m.
An attempt to teach mathematics.
Kathleen A. Taylor*, Duquesne University 
8:45 a.m.
Math and math anxious.
Margaret Herzog*, Pacific Lutheran University 
9:00 a.m.
Contemporary mathematics and its utilitarian value.
Ronald J. Czochor*, Glassboro State College, New Jersey 
9:15 a.m.
Who are the liberal arts students and what math is "practical" for them?
Carole A. Bauer*, Triton College, Illinois 
9:30 a.m.
Who is our customer and what does she need to know?
JoAnne S. Growney*, Bloomsburg University 
9:45 a.m.
What does all this have to do with mathematics?
Barry Brunson*, Western Kentucky University

7:30 a.m.

Saturday August 11, 1990, 7:50 a.m.8:40 a.m.
MAAACM Invited Address
On the computational complexity of doing mathematics.
Juris Hartmanis*, Cornell University 
Saturday August 11, 1990, 8:00 a.m.10:50 a.m.
AMS Special Session on Algebraic Geometry, III

8:00 a.m.
MordellWeil groups of extremal K3 surfaces.
Rick Miranda*, Colorado State University
(85914126) 
8:30 a.m.
Determinantal transversality criteria.
Robert Speiser*, Brigham Young University
(8591455) 
9:00 a.m.
Rationally triangulable automorphisms.
James K. Deveney, Virginia Commonwealth University
David R. Finston*, Virginia Commonwealth University
(8591330) 
9:30 a.m.
The Gauss map of a generic genus 4 theta divisor.
Robert Varley*, University of Georgia
Malcolm Adams, University of Georgia
Clint McCrory, University of Georgia
Theodore Shifrin, University of Georgia
(85914139) 
10:00 a.m.
Minimal models of elliptic threefolds.
Antonella Grassi*, Duke University
(8591494) 
10:30 a.m.
Infinitesimal propagation of line bundles among curves on algebraic varieties.
YunGang Ye*, Duke University
(85914164)

8:00 a.m.

Saturday August 11, 1990, 8:00 a.m.9:20 a.m.
MAA CUPM Subcommittee on Calculus Reform and the First Two Years Panel Discussion 
Saturday August 11, 1990, 8:55 a.m.9:45 a.m.
MAANAM Invited Address
Intriguing problems about zeros in complex analysis.
Carl Lindell Prather*, Virginia Polytechnic Institute and State University 
Saturday August 11, 1990, 9:15 a.m.11:15 a.m.
MAA Minicourse #11: Part A
Producing mathematics courseware with Mathematica: Calculus and Mathematica
Organizers:
Don Brown, University of Illinois, Urbana
Horacio Porta, University of Illinois, Urbana
Jerry Uhl, University of Illinois, Urbana 
Saturday August 11, 1990, 9:15 a.m.11:15 a.m.
MAA Minicourse #12
Exploring statistics and discrete mathematics topics using inexpensive graphing calculators
Organizers:
Franklin Demana, Ohio State University
Bert K. Waits, Ohio State University 
Saturday August 11, 1990, 9:15 a.m.11:15 a.m.
MAA Minicourse #13: Part A
Spreadsheet based mathematical topics for nonmathematics majors
Organizers:
V. S. Ramamurti, University of North Florida 
Saturday August 11, 1990, 9:30 a.m.11:20 a.m.
MAA Session on MAAPME Contributed Paper Session

9:30 a.m.

9:30 a.m.

Saturday August 11, 1990, 9:30 a.m.11:20 a.m.
MAAPME Undergraduate Student Paper Session

9:30 a.m.

9:30 a.m.

Saturday August 11, 1990, 9:30 a.m.11:00 a.m.
MAA Science Policy Committee Panel Discussion
State mathematics coalitions 
Saturday August 11, 1990, 10:00 a.m.10:50 a.m.
MAAAWM Invited Address
The uses of set theory.
Judith Roitman*, University of Kansas 
Saturday August 11, 1990, 11:00 a.m.12:00 p.m.
National Science Foundation 
Saturday August 11, 1990, 12:00 p.m.2:20 p.m.
AMS Special Session on Combinatorics, IV

12:00 p.m.
Large sets of disjoint combinatorial structures.
Luc Teirlinck*, Auburn University, Auburn
(8590581) 
12:30 p.m.
Invariant linear forms and regularity in codes and designs.
A. R. Calderbank*, AT&T Bell Laboratories, Murray Hill, New Jersey
(8590570) 
1:00 p.m.
Designs from maximal arcs and difference sets.
J. F. Dillon*, National Security Agency
(85905150) 
1:30 p.m.
The subconstituent algebra of a graph of thin type.
Paul Terwilliger*, University of Wisconsin, Madison
(85905107) 
2:00 p.m.
On the diameter of Cayley graphs of permutation groups.
Laszlo Babai, University of Chicago
Akos Seress*, Ohio State University, Columbus
(85905148)

12:00 p.m.

Saturday August 11, 1990, 12:00 p.m.2:20 p.m.
AMS Special Session on Ring Theory, IV

12:00 p.m.
The structure of Johns rings.
Carl Faith*, Rutgers University, New Brunswick
Pere Menal, University Autonoma de Barcelona, Spain
(8591665) 
12:30 p.m.
On right perfect localizations.
SeogHoon Rim, University of Wisconsin, Milwaukee
Mark L. Teply*, University of Wisconsin, Milwaukee
Blas Torrecillas, University of Granada, Spain
(8591612) 
1:00 p.m.
Minimal cogenerators need not be unique.
Barbara L. Osofsky*, Rutgers University, New Brunswick
(8591650) 
1:30 p.m.
Uniform modules over serial rings.
Bruno J. Mueller*, McMaster University
Surjeet Singh, Kuwait University, Kuwait
(8591678) 
2:00 p.m.
The second layer condition, links and localization in serial rings with Krull dimension.
Mary H. Wright*, Southern Illinois University, Carbondale
(8591625)

12:00 p.m.

Saturday August 11, 1990, 12:00 p.m.2:00 p.m.
MAA Minicourse #10: Part B
CAS laboratory projects for calculus
Organizers:
Carl Leinbach, Gettysburg College 
Saturday August 11, 1990, 12:00 p.m.2:00 p.m.
MAA Minicourse #8: Part B
A mathematician's introduction to the HP48SX scientific expandable calculator for firsttime users
Organizers:
John Kenelly, Clemson University
Don LaTorre, Clemson University 
Saturday August 11, 1990, 12:00 p.m.2:10 p.m.
AMS Session on Function Spaces

12:00 p.m.
The geometry of harmonic mappings.
Abdallah Lyzzaik*, Kuwait University, Kuwait
(8593002) 
12:15 p.m.
Linear functionals on some weighted Bergman spaces.
Maher M. H. Marzuq*, Kuwait University, Kuwait
(8593003) 
12:30 p.m.
Homogeneous polynomials on L_pspaces.
K. Sundaresan*, Cleveland State University
(8594221) 
12:45 p.m.
Approximation by partial sums of Fourier series.
Syed M. Mazhar*, Ohio State University, Columbus and Kuwait University, Kuwait
(8594293) 
1:00 p.m.
Multituple Shilov boundaries for function spaces.
Toma Tonev*, University of Toledo and Institute of Mathematics, Bulgaria
(85946157) 
1:15 p.m.
Range inclusion and factorization of operators on classical Banach spaces.
Alfred D. Andrew, Georgia Institute of Technology
W. M. Patterson*, Spelman College
(85947115) 
1:30 p.m.
Maxwell's principle for Lagrangian saddle functions.
Gregory B. Passty*, Southwest Texas State University
(85947114) 
1:45 p.m.
Diagonal operators in ideals.
Michael Hoffman*, California State University, Los Angeles
(85947159) 
2:00 p.m.
Relations with composition products of setvalued mappings.
Frank U. Williamson*, Vitry, France
(8594920)

12:00 p.m.

Saturday August 11, 1990, 12:00 p.m.1:40 p.m.
AMS Session on Numerical Methods and Mathematical Modelling

12:00 p.m.
Random processes of the form x_n+1 =a_nx_n+b_n(mod p).
Martin Hildebrand*, Harvard University
(8596089) 
12:15 p.m.
More about twoparameter SOR method.
Saadat Moussavi*, University of Wisconsin, Oshkosh
(85965134) 
12:30 p.m.
Low velocity expressions for the force between moving charges.
Domina Eberle Spencer*, University of Connecticut, Storrs
Shama Y. Uma, Bridgewater State College
(85978112) 
12:45 p.m.
A twolayer compressible/incompressible mathematical model of ice deformation.
William A. Jones, Jr.*, Byrd Polar Research Center and Ohio State University, Columbus
(85986135) 
1:00 p.m.
An investigation into the mathematics behind allometry.
Sue Ann Gaster*, College of Saint Mary
(85992156) 
1:15 p.m.
Geographic location theory: Selected topics.
Sandra L. Arlinghaus*, Institute of Mathematical Geography
(85951116) 
1:30 p.m.
Introductory linear algebra and computers.
Firooz Khosraviyani*, University of Texas at Permian Basin
(85915140)

12:00 p.m.

Saturday August 11, 1990, 12:00 p.m.2:10 p.m.
AMS Session on Differential and Integral Equations

12:00 p.m.
A note on the gap between the first two eigenvalues of one dimensional Schrodinger operator with symmetric potential.
Shoshana Abramovich*, Connecticut College
(8593414) 
12:15 p.m.
Quasilinear Jacobi differential equations.
Victor L. Shapiro*, University of California, Riverside
(8593453) 
12:30 p.m.
Nonlinear matrix differential equations.
John Jones, Jr.*, Air Force Institute of Technology
(8593491) 
12:45 p.m.
A remark on the periodic solutions of autonomous second order differential equations.
Pablo M. Salzberg*, University of Puerto Rico
B. Mehri, University of Puerto Rico
(85934160) 
1:00 p.m.
Local existence and uniqueness of solutions of degenerate parabolic equations.
Jeffrey R. Anderson*, Ball State University
(8593511) 
1:15 p.m.
Lax pairs, recursion operators and perturbations of integrable evolution equations.
Russell L. Herman*, Saint Lawrence University
(8593501) 
1:30 p.m.
Existence and uniqueness of bounded solutions of pertubed integral equations.
M. N. Islam*, University of Dayton
(8594543) 
1:45 p.m.
Characterization of the Meijer transform.
Elias Y. Deeba*, University of Houston, Downtown
E. L. Koh, University of Regina
(8594476) 
2:00 p.m.
Generalized Hilbert's 16th problem.
PingXing Sheng*, State University of New York, Buffalo and University of California, Los Angeles
(8593409)

12:00 p.m.

Saturday August 11, 1990, 12:15 p.m.1:15 p.m.
MAA Earle Raymond Hedrick Lectures: Lecture III
Spirals from Theodorus of Cyrene to metachaos. Theodorus goes wild.
Philip J. Davis*, Brown University 
Saturday August 11, 1990, 1:30 p.m.2:20 p.m.
MAAAMATYC Invited Address
Crisis in mathematics education: Perspective from the twoyear college.
Karl J. Smith*, Santa Rosa Junior College 
Saturday August 11, 1990, 2:15 p.m.4:15 p.m.
MAA Minicourse #11: Part B
Producing mathematics courseware with Mathematica: Calculus and Mathematica
Organizers:
Don Brown, University of Illinois, Urbana
Horacio Porta, University of Illinois, Urbana
Jerry Uhl, University of Illinois, Urbana 
Saturday August 11, 1990, 2:15 p.m.4:15 p.m.
MAA Minicourse #13: Part B
Spreadsheet based mathematical topics for nonmathematics majors
Organizers:
V. S. Ramamurti, University of North Florida 
Saturday August 11, 1990, 2:35 p.m.4:05 p.m.
AMS Progress in Mathematics Lecture
cap lambdatrees and their applications.
John W. Morgan*, Columbia University
(85920167) 
Saturday August 11, 1990, 2:35 p.m.3:25 p.m.
MAA Committee on the Participation of Women Special Lecture
History of women in the MAA
Sunday August 12, 1990