====== The Combinatorics and Number Theory Seminar ======

===== SPRING 2003 =====

[[http://www.anybrowser.org/campaign/|Best Viewed With Any Browser]]


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Organizers: [[laura/|Laura Anderson]], [[matthias/|Matthias Beck]], and [[zaslav/|Thomas Zaslavsky]].

  * **Monday, January 27**\\
//Speaker//: Thomas Zaslavsky (Binghamton)\\
//Title//: [[abstract.200301zas|Semiunique Representation of Some Biased-Graphic Matroids]]\\
//Time//: 3:30 - 4:30\\
//Room//: LN-2201
  * **Monday, February 3**\\
//Speaker//: Marcin Mazur (Binghamton)\\
//Title//: [[abstract.200302maz|Davenport's Constant of a Finite Abelian Group]]\\
//Time//: 4:40 - 5:40\\
//Room//: LN-2205
  * **Monday, February 10**\\
//Speaker//: Ed Swartz (Cornell)\\
//Title//: [[abstract.200302swa|Representations of Matroids]]\\
//Time//: 1:10 - 2:10 **(Note the time!)**\\
//Room//: LN-2205
  * **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//: LN-2205
  * **Monday, March 3**\\
//Speaker//: Steven Dougherty (Univ. of Scranton)\\
//Title//: [[abstract.200303dou|Building Complex and Quaternionic Lattices from Codes over Rings]]\\
//Time//: 4:40 - 5:40\\
//Room//: LN-2205
  * **Monday, March 17**\\
//Speaker//: Matthias Beck (Binghamton)\\
//Title//: Brion's Theorem and its Applications, Part II\\
//Time//: 1:10 - 2:10\\
//Room//: LN-2205
  * **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//: LN-2205\\
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 [[../AlgebraSem/index.html|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//: LN-2205\\
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//: [[abstract.200303kli|Shifted Complexes]]\\
//Time//: 1:10 - 2:10\\
//Room//: LN-2205
  * **Monday, March 31**\\
//Speaker//: Isabel Cristina Ruiz (Binghamton)\\
//Title//: [[abstract.200303ruiz|There is No Tame Triangulation of the Infinite Real Grassmannian]]\\
//Time//: 1:10 - 2:10\\
//Room//: LN-2205
  * **Monday, April 7**\\
//Speaker//: Thomas Zaslavsky (Binghamton)\\
//Title//: [[abstract.200304zas|Polygon Space]]\\
//Time//: 1:10 - 2:10\\
//Room//: LN-2205
  * **Monday, April 14**\\
//Speaker//: Samuel Hsiao (Cornell)\\
//Title//: [[abstract.200304hsi|Eulerian Enumeration and Other Illustrations of the Peak Phenomenon]]\\
//Time//: 4:40 - 5:40\\
//Room//: LN-2205
  * **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//: LN-2205
  * **Thursday, April 24: [[../colloquia/|Colloquium]]**\\
//Speaker//: Ira Gessel (Brandeis University)\\
//Title//: The WZ Method for Combinatorial Identities\\
//Time//: 4:30 - 5:30\\
//Room//: LN-2205
  * **Monday, April 28**\\
//Speaker//: Lori Koban (Binghamton)\\
//Title//: Using Gains to Lift Matroids\\
//Time//: 1:10 - 2:10\\
//Room//: LN-2205
  * **Monday, May 5 (joint with the [[../topsem/index.html|Geometry and Topology Seminar]])**\\
//Speaker//: Isabel Cristina Ruiz (Binghamton)\\
//Title//: [[abstract.200305ruiz|Combinatorializing Vector Bundles]]\\
//Time//: 1:10 - 2:10\\
//Room//: LN-2205\\
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 [[../topsem/index.html|Geometry and Topology Seminar]]) (Note special day.)**\\
//Speaker//: Isabel Cristina Ruiz (Binghamton)\\
//Title//: [[abstract.200305ruiz|Topologizing Combinatorial Bundles]]\\
//Time//: 1:15 - 2:30\\
//Room//: LN-2205\\
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//: [[abstract.200305wau|The Order Dimension of Bruhat Order]]\\
//Time//: 4:30 - 5:30\\
//Room//: LN-2206
  * **Thursday, May 8 (joint with the [[../topsem/index.html|Geometry and Topology Seminar]])**\\
//Speaker//: Laura Anderson (Binghamton)\\
//Title//: [[../topsem/anderson03S.html|Linked Spheres in Oriented Matroids]]\\
//Time//: 2:50 - 3:50\\
//Room//: LN-2205
  * **Monday, May 12**\\
//Speaker//: Chris Bumgartner (Binghamton)\\
//Title//: The Extended Coin-exchange Problem of Frobenius for Arithmetic Sequences\\
//Time//: 4:40 - 5:40\\
//Room//: LN-2206 **(Note special room.)**


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Past Semesters: [[f02|Fall 2002]] | [[s02|Spring 2002]] | [[f01|Fall 2001]] | [[s01|Spring 2001]] | [[f00|Fall 2000]] | [[s00|Spring 2000]] | [[f99|Fall 1999]] | [[s99|Spring 1999]] | [[f98|Fall 1998]]


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[[http://www.math.binghamton.edu/|Departmental home page]].


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