**Problem of the Week**

**BUGCAT**

**Zassenhaus Conference**

**Hilton Memorial Lecture**

**BingAWM**

**Math Club**

**Actuarial Association**

seminars:comb:f01

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

**Wednesday, September 5**

*Speaker*: Thomas Zaslavsky (Binghamton)

*Title*: Weird Stuff About Sperner's Theorem

*Speaker*: Laura Anderson (Binghamton)

*Title*: Topology of oriented matroids

*Time*: 2:50 - 3:50

*Room*: LN-2205

**Wednesday, September 12**

*Speaker*: Matthias Beck (Binghamton)

*Title*: A short, generalizable, and q-analogizable proof of Meshalkin's generalization of Sperner's theorem on componentwise antichains

**Wednesday, September 19**

*No meeting (school holiday)*

*Speaker*: Laura Anderson (Binghamton)

*Title*: Prospects in combinatorial differential manifolds and matroid bundles

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Wednesday, September 26**

*No meeting (school holiday)*

**Wednesday, October 3**

*Speaker*: Alina Vdovina (Binghamton)

*Title*: Eulerian Paths in Cubic Graphs, and Their Applications

**Wednesday, October 10**

*Speaker*: Steven Dougherty (University of Scranton)

*Title*: A Coding-Theoretic Proof of a Part of the Bruck-Ryser Theorem

*Speaker*: Alina Vdovina (Binghamton)

*Title*: Combinatorial Structure of Some Hyperbolic Buildings

*Time*: 2:50 - 3:50

*Room*: LN-2205

**Wednesday, October 17**

*Speaker*: Steve Tedford (Binghamton)

*Title*: Branching Greedoids of Mixed Graphs

**Thursday, October 18: Colloquium**

*Speaker*: Marvin Knopp (Temple)

*Title*: On the Signs of the Coefficients of Modular Forms

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Wednesday, October 24**

No seminar today. See colloquium talk tomorrow.

**Thursday, October 25: Colloquium**

*Speaker*: Carl Pomerance (Univ. of Georgia and Bell Labs)

*Title*: Carmichael's Function

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Tuesday, October 30***(Note special day and time!)*

*Speaker*: Frank Sottile (U. Mass. at Amherst)

*Title*: The Malvenuto-Reutenauer Hopf Algebra of Permutations

*Time*: 4:30-5:30

*Room*: LN-2205

**Wednesday, November 7**

No seminar today. See colloquium talk tomorrow.

**Thursday, November 8: Colloquium**

*Speaker*: Matthias Beck (Binghamton)

*Title*: On the Number of ``Magic Squares''

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Wednesday, November 14**

*Speaker*: Sue Whitesides (McGill and Cornell Universities)

*Title*: Embedding Problems for Paths and Cycles with Direction-Constrained Edges

**Thursday, November 15: Colloquium**

*Speaker*: Thomas Zaslavsky (Binghamton)

*Title*: //Secrets// of Biased Graphs //Revealed!//

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Wednesday, November 28**

*Speaker*: Elizabeth McMahon (Lafayette College)

*Title*: Polynomials on Greedoids and Antimatroids

**Wednesday, December 5**

*Speaker*: Timothy Y. Chow (Tellabs Research Center)

*Title*: The Ring Grooming Problem: Combinatorial Optimization in Modern Telecommunications Networks

**Thursday, December 13: Colloquium**

*Speaker*: Stan Wagon (Macalester College)

*Title*: A Computational View of the Four-Color Theorem: A Resuscitation of a Famous False Proof

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Friday, December 14***(SPECIAL LECTURE! Note special day and time.)*

*Speaker*: Joseph P.S. Kung (Univ. of North Texas)

*Title*: Goncharov Polynomials and Parking Functions

*Time*: 4:30 - 5:30

*Room*: LN-2205

**Wednesday, December 19**

*Speaker*: Daniel Slilaty (Wright State Univ.)

*Title*: An Algebraic Characterization of Projective Planarity of Graphs

seminars/comb/f01.txt · Last modified: 2020/01/29 14:03 (external edit)

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