Friday, November 19, 2021

Friday, November 19, 2021 — 3:30 PM EST

Title: The (3+1)-free conjecture of chromatic symmetric functions

Speaker: Steph van Willigenburg Affiliation:

University of British Columbia

Zoom: Please email Emma Watson

Abstract:

The chromatic symmetric function, dating from 1995, is a generalization of the chromatic polynomial. A famed conjecture on it, called the Stanley-Stembridge (3+1)-free conjecture, has been the focus of much research lately. In this talk we will be introduced to the chromatic symmetric function, the (3+1)-free conjecture, new cases and tools for resolving it, and answer another question of Stanley of whether the (3+1)-free conjecture can be widened. This talk requires no prior knowledge.

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