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Chromatic polynomials of signed Petersen graphs

MSRI-UP 2012: Enumerative Combinatorics June 16, 2012 - July 29, 2012

July 29, 2012 (02:00 PM PDT - 03:00 PM PDT)
Speaker(s): Erika Meza, Bryan Nevarez, Alana Shine
Location: MSRI: Baker Board Room
Video

Abstract

T. Zaslavsky proved that there are essentially six signed versions of the famous Petersen graph. (Look here for an introduction to signed graphs.) He conjectures that they all have different chromatic polynomials. We will try to compute the latter, e.g., using A. Van Herick's IOP software.

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