SPRING 2003
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Organizers: Laura Anderson, Matthias Beck, and Thomas Zaslavsky.

Monday, January 27
Speaker: Thomas Zaslavsky (Binghamton)
Title: Semiunique Representation of Some BiasedGraphic Matroids
Time: 3:30  4:30
Room: LN2201

Monday, February 3
Speaker: Marcin Mazur (Binghamton)
Title: Davenport's Constant of a Finite Abelian Group
Time: 4:40  5:40
Room: LN2205

Monday, February 10
Speaker: Ed Swartz (Cornell)
Title: Representations of Matroids
Time: 1:10  2:10 (Note the time!)
Room: LN2205

Monday, February 17
NO MEETING

Monday, February 24
Speaker: Matthias Beck (Binghamton)
Title: Brion's Theorem and its Applications
Time: 1:10  2:10
Room: LN2205

Monday, March 3
Speaker: Steven Dougherty (Univ. of Scranton)
Title: Building Complex and Quaternionic Lattices from Codes over Rings
Time: 4:40  5:40
Room: LN2205

Monday, March 17
Speaker: Matthias Beck (Binghamton)
Title: Brion's Theorem and its Applications, Part II
Time: 1:10  2:10
Room: LN2205

Monday, March 24
Speaker: Rigoberto Florez (Binghamton)
Title: The Relationship Between Full Algebraic Matroids and Lattice Properties, Part I: Pseudomodularity and Double Circuits
Time: 4:40  5:40 (Note time change.)
Room: LN2205
This is the first part of Mr. Florez's doctoral candidacy exam. The examining committee consists of Matthias Beck, Fernando Guzmán, and Thomas Zaslavsky (chair). Everyone is invited to attend.

Tuesday, March 25 (joint with the Algebra Seminar)
Speaker: Rigoberto Florez (Binghamton)
Title: The Relationship Between Full Algebraic Matroids and Lattice Properties, Part II: Pseudomodularity and Full Algebraic Matroids
Time: 2:50  3:50
Room: LN2205
This is the second part of Mr. Florez's doctoral candidacy exam. The examining committee consists of Matthias Beck, Fernando Guzmán, and Thomas Zaslavsky (chair). Everyone is invited to attend.

Friday, March 28 (Note special day.)
Speaker: Caroline Klivans (MIT)
Title: Shifted Complexes
Time: 1:10  2:10
Room: LN2205

Monday, March 31
Speaker: Isabel Cristina Ruiz (Binghamton)
Title: There is No Tame Triangulation of the Infinite Real Grassmannian
Time: 1:10  2:10
Room: LN2205

Monday, April 7
Speaker: Thomas Zaslavsky (Binghamton)
Title: Polygon Space
Time: 1:10  2:10
Room: LN2205

Monday, April 14
Speaker: Samuel Hsiao (Cornell)
Title: Eulerian Enumeration and Other Illustrations of the Peak Phenomenon
Time: 4:40  5:40
Room: LN2205

Wednesday, April 23 (Note special day.)
Speaker: Ira Gessel (Brandeis University)
Title: Rational Functions with Nonnegative Power Series Coefficients
Time: 4:40  5:40
Room: LN2205

Thursday, April 24: Colloquium
Speaker: Ira Gessel (Brandeis University)
Title: The WZ Method for Combinatorial Identities
Time: 4:30  5:30
Room: LN2205

Monday, April 28
Speaker: Lori Koban (Binghamton)
Title: Using Gains to Lift Matroids
Time: 1:10  2:10
Room: LN2205

Monday, May 5 (joint with the Geometry and Topology Seminar)
Speaker: Isabel Cristina Ruiz (Binghamton)
Title: Combinatorializing Vector Bundles
Time: 1:10  2:10
Room: LN2205
This is the first part of Ms. Ruiz's doctoral candidacy exam. The examining committee consists of Laura Anderson (chair), Thomas Farrell, and Thomas Zaslavsky. Everyone is invited to attend.

Tuesday, May 6 (joint with the Geometry and Topology Seminar) (Note special day.)
Speaker: Isabel Cristina Ruiz (Binghamton)
Title: Topologizing Combinatorial Bundles
Time: 1:15  2:30
Room: LN2205
This is the second part of Ms. Ruiz's doctoral candidacy exam. The examining committee consists of Laura Anderson (chair), Thomas Farrell, and Thomas Zaslavsky. Everyone is invited to attend.

Tuesday, May 6 (Note special day.)
Speaker: Debra Waugh (Alfred University)
Title: The Order Dimension of Bruhat Order
Time: 4:30  5:30
Room: LN2206

Thursday, May 8 (joint with the Geometry and Topology Seminar)
Speaker: Laura Anderson (Binghamton)
Title: Linked Spheres in Oriented Matroids
Time: 2:50  3:50
Room: LN2205

Monday, May 12
Speaker: Chris Bumgartner (Binghamton)
Title: The Extended Coinexchange Problem of Frobenius for Arithmetic Sequences
Time: 4:40  5:40
Room: LN2206 (Note special room.)
Past Semesters: Fall 2002  Spring 2002  Fall 2001  Spring 2001  Fall 2000  Spring 2000  Fall 1999  Spring 1999  Fall 1998
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