37 citations · 224 across the 27 of their papers we have counts for
32 papers
Tower equivalence and Lusztig's truncated Fourier transform
Jean Michel
We give a proof of the results of Chapuy and Douvropoulos [3] for irreducible spetsial reflection groups based on Deligne-Lusztig combinatorics. In particular, if f denotes the tru…
Ribbons in Garside monoids
François Digne, Jean Michel
We expound the properties of ribbons in a setting which is general enough to encompass spherical Artin monoids and dual braid monoids of well-generated complex reflection groups. W…
Formulae for two-variable Green functions
François Digne, Jean Michel
Based on results of Digne-Michel-Lehrer (2003) we give two formulae for two-variable Green functions attached to Lusztig induction in a finite reductive group. We present applicati…
Commutation of Shintani descent and Jordan decomposition
François Digne, Jean Michel
Let be a finite group of Lie type, where is a reductive group defined over and is a Frobenius root. Lusztig's Jordan de…
Quasi-semisimple elements
François Digne, Jean Michel
We study quasi-semisimple elements of disconnected reductive algebraic groups over an algebraically closed field. We describe their centralizers, define isolated and quasi-isolated…
Cyclotomic root systems and bad primes
Michel Broué, Ruth Corran, Jean Michel
We generalize the definition and properties of root systems to complex reflection groups - roots become rank one projective modules over the ring of integers of a number field k. I…