AMS Sectional Meeting Program by Special Session
Current as of Tuesday, April 12, 2005 15:10:43
2002 Spring Western Section Meeting
Portland, OR, June 2022, 2002
Meeting #978
Associate secretaries: Bernard Russo, AMS brusso@math.uci.edu
AMS Special Session on Algebraic Geometry and Combinatorics

Friday June 21, 2002, 8:20 a.m.10:50 a.m.
AMS Special Session on Algebraic Geometry and Combinatorics, I
Room 385, Neuberger Hall
Organizers:
Eric Babson, University of Washington babson@math.washington.edu
Rekha Thomas, University of Washington thomas@math.washington.edu
Sergey Yuzvinsky, University of Oregon yuz@darkwing.uoregon.edu

8:20 a.m.
Vector configurations and toric varieties.
Gregory G Smith*, Barnard College
(97814117) 
9:00 a.m.
Combinatorics and Quotients of Toric Varieties.
Yi Hu*, University of Arizona
(97805106) 
9:40 a.m.
Cohomology of wonderful compactifications and intersection theory on toric varieties.
EvaMaria E. Feichtner*, ETH Zurich
Sergey Yuzvinsky, University of Oregon
(97851100) 
10:20 a.m.
A simple formula for the Todd class of a toric variety (that sometimes works). Preliminary Report.
Graham Denham, University of Western Ontario
Hugh Thomas*, University of Western Ontario
(9781453)

8:20 a.m.

Friday June 21, 2002, 2:30 p.m.5:40 p.m.
AMS Special Session on Algebraic Geometry and Combinatorics, II
Room 385, Neuberger Hall
Organizers:
Eric Babson, University of Washington babson@math.washington.edu
Rekha Thomas, University of Washington thomas@math.washington.edu
Sergey Yuzvinsky, University of Oregon yuz@darkwing.uoregon.edu

2:30 p.m.
On orbifold cohomology.
Arkady Vaintrob*, University of Oregon
(9781491) 
3:10 p.m.
Stable reductive varieties.
Valery Alexeev*, University of Georgia
(9781485) 
3:50 p.m.
Wonderful blowups associated to group actions.
Lev A. Borisov, Columbia University
Paul E. Gunnells*, University of Massachusetts
(9781430) 
4:30 p.m.
Affine approach to quantum Schubert calculus.
Alexander Postnikov*, M.I.T.
(9780578) 
5:10 p.m.
$X^2=0$ and upper triangular matrices.
Brian David Rothbach*, U.C. Berkeley
(97805115)

2:30 p.m.

Saturday June 22, 2002, 8:20 a.m.10:50 a.m.
AMS Special Session on Algebraic Geometry and Combinatorics, III
Room 385, Neuberger Hall
Organizers:
Eric Babson, University of Washington babson@math.washington.edu
Rekha Thomas, University of Washington thomas@math.washington.edu
Sergey Yuzvinsky, University of Oregon yuz@darkwing.uoregon.edu

8:20 a.m.
Chen ranks of arrangements.
Alexander I Suciu*, Northeastern University
(97820112) 
9:00 a.m.
Linearity of resonance components in characteristic $p$.
Michael J. Falk*, Northern Arizona University
(9781494) 
9:40 a.m.
A B\'ezouttype formula for bivariate hypergeometric systems.
Alicia Dickenstein, Universidad de Buenos Aires
Laura Felicia Matusevich*, UC Berkeley
Timur Sadykov, Stockholm University
(9781457) 
10:20 a.m.
A short simplicial hvector and the Upper Bound Theorem.
Patricia L Hersh, University of Michigan, Ann Arbor
Isabella Novik*, University of Washington, Seattle
(9780543)

8:20 a.m.

Saturday June 22, 2002, 2:30 p.m.5:40 p.m.
AMS Special Session on Algebraic Geometry and Combinatorics, IV
Room 385, Neuberger Hall
Organizers:
Eric Babson, University of Washington babson@math.washington.edu
Rekha Thomas, University of Washington thomas@math.washington.edu
Sergey Yuzvinsky, University of Oregon yuz@darkwing.uoregon.edu

2:30 p.m.
Discrete models for algebraic invariants of spaces of polynomials.
Dmitry N Kozlov*, Bern University/KTH Stockholm
(9785771) 
3:10 p.m.
GromovWitten invariants on Grassmannians.
Anders S. Buch*, M.I.T.
Andrew Kresch, University of Pennsylvania
Harry Tamvakis, Brandeis University
(97814124) 
3:50 p.m.
Period Integrals and Feynman diagrams.
Prakash Belkale, University of Utah
Patrick G Brosnan*, University of California, Los Angeles
(9781486) 
4:30 p.m.
Eliminating Two Variables from Three Sparse Unmixed Polynomial Equations.
Amit Khetan*, University of California Berkeley
(97814116) 
5:10 p.m.
Schubert calculus on Grassmannians, via puzzles: ordinary, equivariant, Ktheory, and quantum.
Allen Knutson*, UC Berkeley
Terence Tao, UCLA
(97814127)

2:30 p.m.