The Combinatorics Seminar

SPRING and SUMMER 2013

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Directions to the department.

Organizers: Laura Anderson, Vaidy Sivaraman, and Thomas Zaslavsky.

SPRING 2013

• Tuesday, January 29 (joint with the Geometry/Topology Seminar)
  Speaker: Matt Brin (Binghamton)
  Title: The Prettiest Result I Have Seen In the Last Year
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, February 5
  Speaker: Thomas Zaslavsky (Binghamton)
  Title: Hypercubical Set Labellings of Graphs
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, February 12
  Speaker: Vaidy Sivaraman (Binghamton)
  Title: Bicircular Signed-Graphic Matroids
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, February 19
  Speaker: Thomas Zaslavsky (Binghamton)
  Title: Root Systems, Angle Representations, and Signed Graphs
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, February 26
  Speaker: Thomas Zaslavsky (Binghamton)
  Title: Root Systems, Angle Representations, and Signed Graphs (continued)
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, March 5
  Speakers: Thomas Zaslavsky and Jackie Kaminski (Binghamton)
  Title: Matroids in Mississippi
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, March 12
  Speaker: Stefan van Zwam (Princeton)
  Title: Beyond Total Unimodularity
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, March 19
  Speaker: George Brown (Wisconsin–Stout)
  Title: Leonard Triples of Tridiagonal Matrices Associated with Hypercubes and Their Antipodal Quotients
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, April 2
  No meeting this week.
• Tuesday, April 9
  Speaker: Laura Anderson (Binghamton)
  Title: The Phased Matroid Grassmannian
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, April 16
  Speaker: Laura Anderson (Binghamton)
  Title: The Phased Matroid Grassmannian, Part II
  Time: 1:15 - 2:15
  Room: LN-2205
• Saturday, April 20
  DISCRETE MATHEMATICS DAY at WPI
  Worcester Polytechnic Institute, Worcester, Mass.
• Monday, April 22 (note special day) (joint with the Algebra Seminar)
  Speaker: Alex Fink (North Carolina State)
  Title: Matroids Over Rings
  Time: 2:20 - 3:20
  Room: LN-2201
• Tuesday, April 23
  Speaker: Alex Schaefer (Binghamton)
  Title: Matroid Designs: A Crash Course in Finite Geometry and Design Theory
  Time: 1:15 - 2:15
  Room: LN-2205
• Saturday, April 27
  GRAPH THEORY DAY 65
  at Nassau Community College
• Tuesday, April 30
  Speaker: Simon Lepkin (Binghamton)
  Title: The Stable Marriage Problem, on Digraphs
  Time: 1:15 - 2:15
  Room: LN-2205
• Tuesday, May 7
  Speaker: Dena Morton (Xavier)
  Title: A Family of Nim-Like Arrays
  Time: 1:15 - 2:15
  Room: LN-2205
• Monday, May 13 (Note special day.)
  Speaker: Amanda Ruiz (Binghamton)
  Title: Realization Spaces of Phased Matroids
  Time: 12:00 - 2:00 (Note special time.)
  Room: LN-2205
• Tuesday, May 14
  Speaker: Gary Gordon (Lafayette)
  Title: Moving Faces to Other Places: Facet Derangements of the Hypercube
  Time: 1:00 - 2:00 (Note special time.)
  Room: LN-2205
• Wednesday, May 15 (Note special day.)
  Speaker: Craig Defelice (Binghamton)
  Title: Lattice Path Matroids
  Time: 2:00 - 3:00 (Note special time.)
  Room: LH-13 (Note special room.)

SUMMER 2013

• Wednesday, July 3 (Note special day.)
  Speaker: David Forge (LRI, Orsay)
  Title: Bijections Between Affine Arrangements and Valued Graphs
  Time: 1:15 - 2:15
  Room: LN-2205
• Thursday, July 25 (Note special day.)
  Speaker: Hiroaki Terao (Hokkaido)
  Title: The Freeness of Ideal Subarrangements of Weyl Arrangements
  Time: 11:20 - 12:20 (note special time)
  Room: LN-2205
• Thursday, July 25 (Note special day.)
  Speaker: Jackie Kaminski (Binghamton)
  Title: Classification of Factored Gain-Graphic Hyperplane Arrangements
  Time: 1:30 - 3:30 (note special time)
  Room: LN-2205