activity
20012008
most citedSemicontinuity properties of Kazhdan-Lusztig cells

24 citations · 37 across the 12 of their papers we have counts for

collaborators

12 papers

math.GR2008★ 24 cited

Semicontinuity properties of Kazhdan-Lusztig cells

Cédric Bonnafé

Computations in small Coxeter groups or dihedral groups suggest that the partition into Kazhdan-Lusztig cells with unequal parameters should obey to some semicontinuity phenomenon…

math.RT2008

On Kazhdan-Lusztig cells in type B

Cédric Bonnafé

We prove that, for any choice of parameters, the Kazhdan-Lusztig cells of a Weyl group of type are unions of combinatorial cells (defined using the domino insertion algorithm).

math.RT2008

Automorphisms of Coxeter groups and Lusztig's conjectures for Hecke algebras with unequal parameters

Cédric Bonnafé

Let be a Coxeter system, let be a finite solvable group of automorphisms of and let be a weight function which is invariant under . Let denote the…

math.RT2006

Representation theory of Mantaci-Reutenauer algebras

Cédric Bonnafé

We study some aspects of the representation theory of Mantaci-Reutenauer algebras: Cartan matrix, Loewy length, modular representations.

math.RT2006

On the character ring of a finite group

Cédric Bonnafé

Let be a finite group and let be a sufficiently large finite field. Let denote the character ring of (i.e. the Grothendieck ring of the category of ${\mathbb{C}}…

math.RT2005

A note on the Grothendieck ring of the symmetric group

Cédric Bonnafé

Let be a prime number and let be a non-zero natural number. We compute the descending Loewy series of the algebra , where denotes the ring of virtual ord…