Organizers: Laura Anderson, Eric Swartz, and Thomas Zaslavsky.
Tuesday, September 4
Organizational meeting
Time: 1:15 - 1:45
Room: LN-2205
—– Special Announcement —–
Weekly Study Seminar on Matroid Theory
Time: Wed., 3:30 - 4:30, beginning Wed., Sept. 5
Room: LN-2206
All are invited. This will be a very elementary introduction to the basics of matroids, based on James Oxley, Matroid Theory, second edition. Zaslavsky hopes to teach a course on matroid theory in the spring; this could be (optional) preparation for it.
Tuesday, September 11
Speaker: Alex Schaefer (Binghamton)
Title: Realizing Directed Graphs by Dice
Time: 1:15 - 2:15
Room: LN-2205
Saturday, September 15
DISCRETE MATHEMATICS DAYS OF THE NORTHEAST
At the Bread Loaf Campus of Middlebury College. Information.
All interested persons are invited. Preregistration is requested so enough lunches will be available.
Tuesday, September 18
Holiday: No seminar.
Tuesday, September 25
Speaker: Matt Brin (Binghamton)
Title: Groups and Map Colorings
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, October 2
Speaker: Simon Joyce (Binghamton)
Title: The Conjectures of R. Thomas on Gene Regulatory Networks
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, October 9
No seminar today; the scheduled talk has been cancelled.
Tuesday, October 16
Speaker: Simon Lepkin (Binghamton)
Title: Extended Gale-Shapley Algorithm for Stable Many-Many Matchings
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, October 23
Speaker: Eric Swartz (Binghamton)
Title: Locally 3-Arc-Transitive Covers of Complete Bipartite Graphs
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, October 30
Speaker: Ed Swartz (Cornell)
Title: Manifold Complexity and Face Enumeration
Time: 1:15 - 2:15
Room: LN-2205
Saturday, November 3
GRAPH THEORY DAY 64
Stevens Institute of Technology, Hoboken, New Jersey
Tuesday, November 6
Speaker: Neil Spalter (Binghamton)
Title: Orthogonal Latin Squares of Order 6
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, November 13
Speaker: Alex Schaefer (Binghamton)
Title: Introduction to Phylogenetic Combinatorics
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, November 20
Speaker: Kaitlin Reissig (Binghamton)
Title: Stanley's Theorem on Acyclic Orientations and Colorings of Graphs
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, November 27
Speaker: Michael Fink (Binghamton)
Title: Network Theory and Signal Processing
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, December 4
Speaker: Jackie Kaminski (Binghamton)
Title: Classification of Factored Gain-Graphic Arrangements
Time: 1:15 - 2:15
Room: LN-2205
Tuesday, December 11
Speaker: Amanda Ruiz (Binghamton)
Title: Realization Spaces of Phased Matroids
Time: 1:15 - 2:15
Room: LN-2205
Phased matroids are combinatorial objects, recently defined by Anderson and Delucchi, that play the same role for complex vector spaces as oriented matroids do for real vector spaces. A phased matroid is a matroid with additional structure that generalizes orientation.
According to Mnëv's Universality Theorem, for those phased matroids which are complexified oriented matroids, the realization space can be arbitrarily complicated. In contrast, for most other phased matroids, the realization space is remarkably simple. I will focus on the rank-3 case to demonstrate some properties of, and proofs about, phased matroids.
Past Semesters: