AMS Sectional Meeting Program by Day
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1989 AMS Northeast Sectional Meeting
Worcester, MA, April 1516, 1989
Meeting #848
Associate secretaries:
W Wistar Comfort, AMS
wcomfort@wesleyan.edu
Saturday April 15, 1989

Saturday April 15, 1989, 7:55 a.m.9:50 a.m.
Session on Graphs, Trees and Groups
Room 19, Haberlin Hall

7:55 a.m.
On the structure of the strong orientations of a graph.
John Donald, San Diego State University
John Elwin*, San Diego State University
(8480531)

8:10 a.m.
Construction of selfdual graphs.
Peter R. Christopher*, Worcester Polytechnic Institute
Brigitte Servatius, Worcester Polytechnic Institute
(8480573)

8:25 a.m.
Three and fourdimensional Catalan numbers.
Stephen Snover*, University of Hartford
Stephanie Troyer, University of Hartford
(8480595)

8:40 a.m.
mDimensional Catalan numbers.
Stephen Snover, University of Hartford
Stephanie Troyer*, University of Hartford
(8480594)

8:55 a.m.
Rigidity trees.
Brigitte Servatius*, Worcester Polytechnic Institute
(8480546)

9:10 a.m.
Completely normal lattices.
Constantine Tsinakis*, Vanderbilt University
(8480675)

9:25 a.m.
The Tits conjecture and the fivestring braid group.
Carl Droms*, James Madison University
Jacques Lewin, Syracuse University
Hermann Servatius, College of the Holy Cross
(8482032)

9:40 a.m.
Surface subgroups of infinite Coxeter groups.
Carl Droms, James Madison University
Brigitte Servatius, Worcester Polytechnic Institute
Hermann Servatius*, College of the Holy Cross
(8482052)

Saturday April 15, 1989, 8:00 a.m.9:50 a.m.
Special Session on Infinitedimensional Symmetries in Mathematics and Physics, I
Room 236, Haberlin Hall

8:00 a.m.
Multiplicities in the discrete series of the Virasoro algebra.
Alvany Rocha*, Bernard M. Baruch College, City University of New York
(8481763)

8:30 a.m.
The KP deformations of vector bundles over an elliptic curve.
Emma Previato*, Boston University
George Wilson, Imperial College, London
(8481438)

9:00 a.m.
A correspondence between an infinite Grassmannian and arbitrary vector bundles on algebraic curves.
Motohico Mulase*, Temple University and Institute for Advanced Study
(8485810)

9:30 a.m.
Catastrophes, conformal theories and CalabiYau manifolds.
Cumrun Vafa*, Harvard University
(8488184)

Saturday April 15, 1989, 8:00 a.m.9:50 a.m.
Special Session on Gauge Theory and Differential Geometry, I
Room 328, Swords Hall

8:00 a.m.
Constructing the Floer cycles.
Cliff Taubes*, Harvard University
(8485367)

8:30 a.m.
Vortices on K\"ahler manifolds.
Steven Bradlow*, Stanford University
(8485317)

9:00 a.m.
Instantons and the geometry of the nilpotent variety.
Peter Kronheimer*, Institute for Advanced Study
(8485320)

9:30 a.m.
Converging Ricci flow for metrics with indefinite curvature in arbitrary dimensions.
James Isenberg*, University of California at San Diego, La Jolla, and University of Oregon
(8485315)

Saturday April 15, 1989, 8:00 a.m.9:50 a.m.
Special Session on Lfunctions and Arithmetic, I
Room 414, Haberlin Hall

8:00 a.m.
A formal Mellin transformation in the arithmetic of function fields.
David Goss*, University of Maryland, Baltimore County
(8481423)

8:30 a.m.
Representations of the Weil group.
George Zettler*, Columbia University
Don M. Blasius, University of California, Los Angeles
(8481196)

9:00 a.m.
Arithmetic ampleness.
Christophe Soul\'e*, Centre National de la Recherche Scientifique and Harvard University
(8481165)

9:30 a.m.
Modular caps, totally real fields, and periods of Eisenstein series on $GL(n)$.
Glenn Stevens*, Boston University
(8481166)

Saturday April 15, 1989, 8:30 a.m.9:50 a.m.
Special Session on Operator Algebras, Galois Theory and Representations, I
Room 238, Haberlin Hall

8:30 a.m.
Noncommutative toroidal orbifolds.
Ola Bratteli, University of Trondheim, Norway
George A. Elliott*, University of Toronto
David E. Evans, University College of Swansea, Wales
Akitaka Kishimoto, T\^ohoku University, Japan
(8484649)

9:00 a.m.
Representations of projections.
ManDuen Choi*, University of Toronto
(8484750)

9:30 a.m.
Symmetries of the CAR algebra.
Bruce Blackadar*, University of Nevada, Reno
(8484687)

Saturday April 15, 1989, 9:00 a.m.9:50 a.m.
Special Session on Knot Theory and Algebraic Geometry in the Large, I
Room 359, Swords Hall

9:00 a.m.
The equisymmetric stratification of the moduli space.
S. Allen Broughton*, Cleveland State University
(8481454)

9:30 a.m.
Homology of Abelian covers.
A. Libgober*, University of Illinois, Chicago
(8489998)

Saturday April 15, 1989, 10:00 a.m.11:00 a.m.
Invited Address

Saturday April 15, 1989, 12:30 p.m.1:30 p.m.
Invited Address
The YangMills moduli space.
Room 103, Haberlin Hall
Thomas H. Parker*, Michigan State University
(8485391)

Saturday April 15, 1989, 1:45 p.m.4:05 p.m.
Special Session on Infinitedimensional Symmetries in Mathematics and Physics, II
Room 236, Haberlin Hall

1:45 p.m.
Representation theory and the Schubert calculus.
Dale H. Peterson*, University of British Columbia
(8482288)

2:15 p.m.
Vertex operators and integral bases of affine Lie algebras.
Shari Prevost*, Rutgers University, New Brunswick
(8481762)

2:45 p.m.
Constructions of vertex operator superalgebras and paraalgebras.
Alex J. Feingold*, State University of New York, Binghamton
John F. X. Ries, State University of New York, Binghamton
Igor B. Frenkel, Yale University
(8481739)

3:15 p.m.
Level two standard representations of affine special linear Lie algebras.
Kailash C. Misra*, North Carolina State University
(8481782)

3:45 p.m.
Vertex operator relations for affine Lie algebras.
Stefano Capparelli*, Yale University
(8481757)

Saturday April 15, 1989, 1:45 p.m.4:05 p.m.
Special Session on Gauge Theory and Differential Geometry, II
Room 328, Swords Hall

1:45 p.m.
On the existence of hyperbolic monopoles.
L. M. Sibner*, Polytechnic Institute of New York
R. J. Sibner, Brooklyn College, City University of New York
Karen Uhlenbeck, University of Texas, Austin
(8485379)

2:15 p.m.
The geometry of magnetic monopoles.
Peter J. Braam*, University of Utah and Merton College, England
(8485322)

2:45 p.m.
Torsion constraints in supergeometry.
John Lott*, University of Michigan, Ann Arbor
(8485319)

3:15 p.m.
Classifying connections by holonomy.
R. J. Sibner*, Brooklyn College, City University of New York
L. M. Sibner, Polytechnic Institute of New York
(8485380)

3:45 p.m.
Fixed points of finite group actions on $3$manifolds.
Nicholas Buchdahl*, Tulane University
Slawomir Kwasik, Tulane University
Reinhard Schultz, Purdue University, West Lafayette
(8485321)

Saturday April 15, 1989, 1:45 p.m.4:05 p.m.
Special Session on Lfunctions and Arithmetic, II
Room 414, Haberlin Hall

1:45 p.m.
Lfunctions of universal elliptic curves over Igusa curves.
Douglas L. Ulmer*, Massachusetts Institute of Technology
(8481124)

2:15 p.m.
Trilinear forms and local $\epsilon$factors for $GL_2$.
Dipendra Prasad*, Harvard University
(8481142)

2:45 p.m.
Averages of Lfunctions and their derivatives.
V. Kumar Murty*, University of Toronto
Ram Murty, McGill University
(8481172)

3:15 p.m.
The formal group of the Jacobian of an algebraic curve.
Margaret N. Freije*, College of the Holy Cross
(8481170)

3:45 p.m.
Modular quaternionic Lvalue congruences.
Ted Chinburg*, Columbia University
(8481108)

Saturday April 15, 1989, 1:45 p.m.4:05 p.m.
Special Session on Knot Theory and Algebraic Geometry in the Large, II
Room 359, Swords Hall

1:45 p.m.
Higher codimensional algebraic knots.
Alan H. Durfee*, Mount Holyoke College
(8485726)

2:15 p.m.
Complex algebraic plane curves via their links at infinity.
Walter D. Neumann*, Ohio State University, Columbus
(8485734)

2:45 p.m.
A congruence between link polynomials.
Lee Rudolph*, Clark University
(8485730)

3:15 p.m.
The fundamental group of the complement of an algebraic curve.
Stepan Yu Orevkov*, Moscow, USSR
(8481451)

3:45 p.m.
Discussion

Saturday April 15, 1989, 1:45 p.m.4:10 p.m.
Session on Geometry, Topology and Applied Mathematics
Room 19, Haberlin Hall

1:45 p.m.
A note on $\scr k$uniform rotundity.
Srinivasa Swaminathan*, Dalhousie University
(8484643)

2:00 p.m.
Interior hull inequalities for lattice polygons.
Stanley Rabinowitz*, Westford, Massachusetts
(8485274)

2:15 p.m.
Invariant affine connections on symmetric spaces.
H. Turner Laquer*, Case Western Reserve University
(8485353)

2:30 p.m.
Complete stable minimal surfaces in $R^3$.
Marty Ross*, Stanford University
(8485309)

2:45 p.m.
Comparison of the handle and tunnel numbers of classical knots.
John Erbland*, University of Hartford
(8485745)

3:00 p.m.
The interbubble medium: Inflationary IBM.
Stephen L. Weinberg*, Berkeley Academy of Artscience, Berkeley, California
(8488506)

3:15 p.m.
The force field holor.
Shama Y. Uma, Bridgewater State College
Domina Eberle Spencer*, University of Connecticut, Storrs
(8487813)

3:30 p.m.
Electromagnetic field holors.
Shama Y. Uma*, Bridgewater State College
Domina Eberle Spencer, University of Connecticut, Storrs
(8487812)

3:45 p.m.
A theory of duality in mathematical programming.
Andrzej Wieczorek*, Polish Academy of Sciences, Warsaw
(8489007)

4:00 p.m.
Computing characteristic classes of continuous lattice gauge fields.
A. V. Phillips, State University of New York, Stony Brook
David A. Stone*, City College, City University of New York
(8488144)

Saturday April 15, 1989, 2:15 p.m.3:35 p.m.
Special Session on Operator Algebras, Galois Theory and Representations, II
Room 238, Haberlin Hall

2:15 p.m.
Continuous semigroups of $^*$endomorphisms of $B(H)$.
Robert Powers*, University of Pennsylvania
(8484628)

2:45 p.m.
The $C^*$algebras generated by pairs of semigroups of isometries satisfying certain commutation relations.
Geoffrey Price*, United States Naval Academy
(8484681)

3:15 p.m.
Index theory for pairs of factors of infinite index.
Richard Herman*, Pennsylvania State University, University Park
Adrian Ocneanu, Pennsylvania State University, University Park
(8484685)

Saturday April 15, 1989, 6:00 p.m.9:00 p.m.
Council
Sturbridge A & B, Howard Johnson's Motor Lodge
Inquiries: meet@ams.org