The Combinatorics Seminar

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Organizers: Laura Anderson and Thomas Zaslavsky.

Scheduled Talks in the Spring Semester

• Thursday, February 3 (Colloquium)
  Speaker: Mark Watkins (Syracuse)
  Title: A Characterization of Infinite Planar Imprimitive Graphs
  Time: 4:30 - 5:30
  Room: LN-2205
• Thursday, February 10
  Speaker: Thomas Zaslavsky (Binghamton)
  Title: Quasipolynomials and their Convolution
  Time: 1:15 - 2:15
  Room: LN-2201
• Thursday, February 17
  Speaker: Rigoberto Florez (Binghamton)
  Title: Harmonic Conjugation in Harmonic Matroids
  Time: 1:15 - 2:15
  Room: LN-2201
• Thursday, February 24
  Speaker: David Forge (Orsay and Binghamton)
  Title: Orlik-Solomon Algebras and Other Algebras of Hyperplane Arrangements
  Time: 1:15 - 2:15
  Room: LN-2201
• Thursday, March 3
  Speaker: Thomas Zaslavsky (Binghamton)
  Title: Signed and Biased Graphs: A Survey
  Time: 1:15 - 2:15
  Room: LN-2205
• Thursday, March 10 (joint with the Algebra Seminar)
  Speaker: Franco Saliola (Cornell)
  Title: Face Algebras of Hyperplane Arrangements, Lattice Cohomology, and Quivers
  Time: 1:15 - 2:15
  Room: LN-2205
• Thursday, March 17 (joint with the Algebra Seminar)
  Speaker: Lauren Rose (Bard College)
  Title: Algebraic Combinatorics of Piecewise Polynomials
  Time: 1:15 - 2:15
  Room: LN-2205
• Thursday, March 31
  Speaker: Cristina Ruiz (Binghamton)
  Title: A Stratification of the Middle-level MacPhersonian
  Time: 1:15 - 2:15
  Room: LN-2205
• Thursday, April 7 (Colloquium)
  CANCELLED
  Speaker: Vladislav Goldberg (New Jersey Institute of Technology)
  Title: Solution of Blaschke's Problem on the Linearization of Planar Webs
  Time: 4:30 - 5:30
  Room: LN-2205
• Thursday, April 14 (Colloquium)
  Speaker: Jack Graver (Syracuse)
  Title: When Does a Curve Bound a Distorted Disk?
  Time: 4:30 - 5:30
  Room: LN-2205
• Friday, April 22
  Speaker: Bruce Sagan (Michigan State)
  Title: GCD Determinants
  Time: 2:20 - 3:20
  Room: LN-2205
• Friday, April 22 (Colloquium)
  Speaker: Bruce Sagan (Michigan State)
  Title: Congruences for Combinatorial Sequences
  Time: 4:40 - 5:40
  Room: LN-2205
• Thursday, May 5 (Colloquium)
  Speaker: Robert Connelly (Cornell)
  Title: The Kneser-Poulsen Conjecture in the Plane
  Time: 4:30 - 5:30
  Room: LN-2205

• Tuesday, May 10
  Speaker: Alice Dean (Skidmore)
  Title: Characterizations of Unit-Bar Visibility Graphs
  Time: 2:00 - 3:00 (note unusual time)
  Room: LN-1402 (note unusual room)

Scheduled Talks in the Summer

• Wednesday, June 8
  Speaker: Greg Kuperberg (University of California at Davis and Cornell University)
  Title: Numerical Cubature from Geometry and Coding Theory
  Time: 11:00 - 12:00
  Room: LN-2205
• Monday, June 27
  Speaker: N.M. Singhi (Tata Institute)
  Title: Studying t-Designs and Other Families of Subsets of a Finite Set Algebraically
  Time: 11:00 - 12:00 (Note unusual time.)
  Room: LN-2205
• Thursday, July 14
  Speaker: Rigoberto Flórez
  Title: Four Studies in the Geometry of Biased Graphs
  Time: 1:00 - 2:15 and 3:00 - 3:30
  Room: LN-2205

  This talk is the public part of Mr. Flórez's thesis defense. The committee is Thomas Zaslavsky (chair), Laura Anderson, Marcin Mazur, and Gary Gordon (Lafayette College). All persons are welcome to attend the talk.

• Friday, July 15
  Speaker: Gary Gordon (Lafayette College)
  Title: Symmetries of the Icosahedral Matroid
  Time: 11:00 - 12:00
  Room: LN-2205