PROGRAM 
Saturday April 12, 2003.
| 8:15 - 8:45 | Francesco Brenti, Universita degli Studi di Tor Vergata, Rome, Italy. | |
| Parabolic Kazhdan-Lusztig and $R$-polynomials for Hermitian symmetric pairs: the hyperoctahedral case. | ||
| 8:55 - 9:25 | Allen Knutson, U.C. Berkeley. | |
| Positive formulae for quiver polynomials. | ||
| 9:35 - 10:05 | Nicholas Proudfoot, U.C. Berkeley. | |
| Hypertoric varieties. | ||
| 10:15 - 10:45 | Irene Müller, ETH Zürich, Switzerland. | |
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On corner cut polytopes. | ||
| 2:30 - 3:00 | Sergey Yuzvinsky, University of Oregon. | |
| Realization of Abelian groups by complex plane nets. | ||
| 3:05 - 3:35 | Graham Denham, University of Western Ontario. | |
| Gram matrices from Steinberg lattices and hyperplane arrangements. | ||
| 3:45 - 4:15 | Giovanni Gaiffi, Scuola Normale Superiore, Pisa Italy. | |
| Combinatorics of real and complex models of arrangements. | ||
| 4:25 - 4:55 | Alexander I. Suciu, Northeastern University. | |
| Fundamental groups of complex hyperplane arrangements. | ||
| 5:00 -5:30 | Serge Tabachnikov, Pennsylvania State University . | |
| Complexity of the motion planning problem in the real projective space. |
Sunday April 13, 2003.
| 8:15 - 8:45 | Bruce Sagan, Michigan State University. | |
| Topological properties of active orders for matroid bases. | ||
| 8:55 - 9:25 | John Shareshian, Washington University. | |
| The no-perfect-matching complex and related complexes. | ||
| 09:35 - 10:05 | Eric Babson, University of Washington. | |
| Maps and graph colorings. | ||
| 10:15 - 10:45 | Laura Anderson, Binghamton University. | |
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Topological questions on non-Euclidean oriented matroids.
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| 2:45 - 3:15 | Robin Forman, Rice University. | |
| Some remarks about locally-defined combinatorial invariants. | ||
| 3:25-3:55 | Ruth Kellerhals, Universite Fribourg, Switzerland. | |
| Combinatorial-topological aspects of hyperbolic volume. | ||
| 4:05-4:35 | Steven H. Weintraub, Lehigh University. | |
| Spreads of non-singular pairs in symplectic vector spaces | ||
| 4:45-5:15 | Michael Shapiro, Michigan State University. | |
| Cluster algebras and Poisson Geometry |
All the lectures take place in Room 613, Courant Building.