The Combinatorics Seminar

FALL 2009

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Directions to the department.

Organizers: Laura Anderson, Emanuele Delucchi, and Thomas Zaslavsky.

  • Tuesday, September 1
    Organizational Meeting
    Time: 1:15 - 2:00
    Room: LN-2205

  • Tuesday, September 8
    Speaker: Lucas Rusnak (Binghamton)
    Title: Oriented Incidence and a Generalization of Hypergraphs: An Introduction
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, September 15
    Speaker: Lucas Rusnak (Binghamton)
    Title: Oriented Incidence and a Generalization of Hypergraphs: Balance and Dependency
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, September 22
    Speaker: Thomas Zaslavsky (Binghamton)
    Title: Psycho-Graph Math on Two-Mode Signed Networks
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, September 29
    Speaker: Amanda Ruiz (Binghamton)
    Title: When Do Two Planted Graphs Have the Same Cotransversal Matroid?
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, October 6 (joint with the Geometry and Topology Seminar)
    Speaker: Priyavrat Deshpande (Western Ontario)
    Title: Arrangements of Submanifolds and the Tangent-Bundle Complement
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, October 13 (joint with the Geometry and Topology Seminar)
    Speaker: Max Wakefield (Annapolis)
    Title: Topological Formality of Arrangements of Subspaces Derived from Edge-Colored Hypergraphs
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, October 20
    Speaker: Tom Head (Binghamton)
    Title: Computing Transparently: The Independent Sets in a Graph
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, October 27
    Speaker: Emanuele Delucchi & Laura Anderson (Binghamton)
    Title: Complex Matroids
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, November 3
    Speaker: Nate Reff (Binghamton)
    Title: Extensions of Spectral Graph Theory
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, November 10
    Speaker: Caroline Klivans (Chicago and Cornell)
    Title: A Geometric Interpretation of the Characteristic Polynomial of a Hyperplane Arrangement
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, November 17 (joint with the Algebra and Number Theory Seminars)
    Speaker: Justin Lambright (Lehigh)
    Title: A Combinatorial Interpretation for Computations in the Quantum Polynomial Ring
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, November 24 (joint with the Algebra and Number Theory Seminars)
    Speaker: Matthias Beck (San Francisco State University)
    Title: Symmetrically Constrained Compositions of an Integer
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, December 1
    Speaker: Lucas Sabalka (Binghamton)
    Title: Graph Braid Groups [Cancelled]
    Time: 1:15 - 2:15
    Room: LN-2205

  • Tuesday, December 8
    Speaker: Simon Joyce (Binghamton)
    Title: The Sum of Squares of Degrees in a Graph
    Time: 1:15 - 2:15
    Room: LN-2205

  • Friday, December 18 (Special time)
    Speaker: Lucas Rusnak (Binghamton)
    Title: Oriented Hypergraphs, Parts I & II
    Time: 10:30 - 11:30 and 1:00-2:00
    Room: LN-1120 (Note special room.)

    These lectures are the Ph.D. thesis defense of Mr. Rusnak. His examining committee is Laura Anderson, Gerard Cornuejols (Carnegie-Mellon), Marcin Mazur, and Thomas Zaslavsky (chair).

    Everyone is welcome to attend.

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