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9:00 a.m. Rook Theory interpretations of $(p,q)$-Analogues of Generalized Stirling Numbers. Jeffrey B. Remmel*, University of California at San Diego
(982-05-148)
9:30 a.m. A Combinatorial Interpretation of $(p,q)$-hit numbers. Karen Sue Briggs*, University of California, San Diego
(982-05-149)
10:00 a.m. Lagrangian pairs of Coxeter matroids. Richard Booth, UMIST
A. Borovik, UMIST
Neil White*, University of Florida
(982-05-23)
10:30 a.m. The Catalan matroid. Federico Ardila*, Massachusetts Institute of Technology
(982-05-285)
2:30 p.m. Generalized associahedra. Sergey Fomin*, University of Michigan
Andrei Zelevinsky, Northeastern University
(982-05-233)
3:00 p.m. The pre-WDVV ring of physics and its topology. Margaret A. Readdy*, University of Kentucky
(982-05-62)
3:30 p.m. On the Property M Conjecture for the Heisenberg Lie algebra. Phil Hanlon, University of Michigan
Michelle L. Wachs*, University of Miami
(982-05-283)
4:00 p.m. Hypergraph matching complexes, $p$-cycle complexes and Quillen complexes of symmetric groups. John Shareshian*, Washington University
Michelle L Wachs, University of Miami
(982-05-205)
4:30 p.m. Counting bivariate Horn functions. Alicia Dickenstein, Universidad de Buenos Aires
Laura Felicia Matusevich*, Mathematical Sciences Research Institute
Timur Sadykov, Stockholm University
(982-14-250)
5:00 p.m. A Hodge decomposition for the complex of injective words. Phil Hanlon, University of Michigan
Patricia Hersh*, University of Michigan
(982-05-145)
5:30 p.m. Algebraic Properties of Catalan Trees. Dan W Singer*, Minnesota State University, Mankato
(982-05-197)
2:30 p.m. Counting binary trees by ascents and descents. Ira M Gessel*, Brandeis University
(982-05-173)
3:00 p.m. Perfect matchings and perfect powers. Mihai Ciucu*, Georgia Institute of Technology
(982-05-273)
3:30 p.m. Two Injection-based Proofs for a Conjecture of Simion and Sagan. Miklos Bona*, University of Florida
Bruce E. Sagan, Michigan State University
(982-05-86)
4:00 p.m. Permutations Which Avoid 1243 and 2143, Continued Fractions, and Chebyshev Polynomials. Eric S Egge*, Gettysburg College
Toufik Mansour, Universit\'e Bordeaux 1
(982-05-38)
4:30 p.m. The subword complexity of a class of infinite binary words. Irina Gheorghiciuc*, University of Pennsylvania
(982-05-272)
5:00 p.m. Prefix exchanging and pattern avoiding involutions. Aaron D. Jaggard*, University of Pennsylvania
(982-05-243)