
François Digne
Université de Picardie
Some varieties associated to braid group elements
Friday 31st October, 12:0512:55pm,
Carslaw 373.
In the theory of reductive groups one uses varieties associated to Weyl
group elements such as Schubert varieties or DeligneLusztig varieties.
To study their geometry it is useful to define similar
varieties associated to elements in the corresponding Artin braid group.
We shall see some examples and give an idea of applications in the
representation theory of reductive groups over finite fields.







