3 papers
math.GR2003
Une (nouvelle ?) construction du groupe de réflexion complexe
C. Bonnafé
In Shephard-Todd classification of finite (complex) reflection groups, the group appears to be the unique one in rank 4 of order 46080. We provide here an elementary const…
math.RT2002
Categories derivees et varietes de Deligne-Lusztig
Cedric Bonnafe, Raphael Rouquier
We prove a conjecture of Broue about the Jordan decomposition of blocks of finite reductive groups. We show that a block of a finite connected reductive group, in non-describing ch…
math.GR2001
Quotients et extensions de groupes de reflexions complexes
David Bessis, Cedric Bonnafe, Raphael Rouquier
We give a geometric description of a certain class of epimorphisms between complex reflection groups. We classify these epimorphisms, which can be interpreted as ``morphisms'' betw…