Demazure modules and $0$-Hecke modules of type $A$

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Demazure modules and $0$-Hecke modules of type $A$

수리과학부 0 1216
구분 Rookies Pitch (BK21 FOUR 신진연구자 연구발표회)
일정 2021-05-04(화) 16:00~16:30
세미나실 129동 101호
강연자 최승일 (서울대)
담당교수 서인석
기타
In this talk, I will explain the construction of the $0$-Hecke module arising from a certain tableau that comes from the Demazure module of type $A$. More precisely, I first give Mason`s tableau model of Demazure atoms as a component of the decomposition of the Demazure module. And then, a basis of the ring of quasisymmetric functions, called quasisymmetric Schur functions, defined by using this model will be presented. Finally, I will describe the action of the 0-Hecke algebra due to Tewari and van Willigenberg, and describe the $0$-Hecke modules whose quasisymmetric characteristics are quasisymmetric Schur functions.

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