Chromatic polynomials of signed Petersen graphs
Location: MSRI: Baker Board Room
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.
If none of the options work for you, you can always buy the DVD of this lecture. The videos are sold at cost for $20USD (shipping included). Please Click Here to send an email to MSRI to purchase the DVD.
See more of our Streaming videos on our main VMath Videos page.