Seminario del 2023

Marzo
30
2023
Christophe Hohlweg
Shi arrangement and low element
nell'ambito della serie: SEMINARIO DI ALGEBRA E GEOMETRIA
algebra e geometria
In this talk, I will survey the notion of Garside families in relation with the word problem for Artin-Tits groups. In particular, Dehornoy, Dyer and I proved that there exist a finite Garside family in any Artin-Tits group G. Then I will discuss how this family is (suprisingly) related to a well-known finite hyperplane sub-arrangements, the Shi arrangement, of the reflection arrangement of the Coxeter group associated to G.
organizzato da: Riccardo Biagioli
nell'ambito del Progetto R.F.O. del prof. Riccardo Biagioli

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