This project is maintained by ysykimura
2020年6月5日(金) 15:00~16:00, 16:15~17:15
Zoom
阿部紀行氏(東京大学 大学院数理科学研究科)
On Soergel bimodules
Soergel introduced the category which is now called the Soergel bimodules. It gives a categorification of the Hecke algebra with, roughly speaking, characteristic zero field. Williamson gave a singular version of his theory. It still works only with the same assumption as Soergel. I will explain how to modify this category to work with positive characteristic field. I also explain relations with other categories which categorify the Hecke algebra.