離散幾何構造セミナー:Chromatic quasisymmetric functions vs Hessenberg varieties (Dr. Ye Liu)

開催日時
2017年   14時 45分 ~ 2017年   12月 14日 16時 15分
場所
3-413
講演者
Ye Liu
 
DGS Seminar 009

This talk is a follow-up of the previous. After a brief introduction to Hessenberg varieties, we introduce Shareshian and Wachs’ conjecture relating the chromatic quasisymmetric function of the incomparability graph of a natural unit interval order with the cohomology of the associated Hessenberg variety as a symmetric group representation. If time permits, we try to outline one proof given by Guay-Paquet using Hopf algebra.

関連項目
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研究集会・セミナー・集中講義の一覧へ