activity
20082024
most citedCoxeter orbits and Brauer trees

21 citations · 83 across the 20 of their papers we have counts for

collaborators

26 papers

math.RT2024

Rationality of extended unipotent characters

Olivier Dudas, Gunter Malle

We determine the rationality properties of unipotent characters of finite reductive groups arising as fixed points of disconnected reductive groups under a Frobenius map. In the pr…

math.RT2023

Decomposition numbers for unipotent blocks with small -weight in finite classical groups

Olivier Dudas, Emily Norton

We show that parabolic Kazhdan-Lusztig polynomials of type compute the decomposition numbers in certain Harish-Chandra series of unipotent characters of finite groups of Lie ty…

math.RT2021

Decomposition numbers for the principal -block of and

Olivier Dudas, Emily Norton

We compute the decomposition numbers of the unipotent characters lying in the principal -block of a finite group of Lie type or when is an odd pri…

math.RT2021

The Ext-algebra of the Brauer tree algebra associated to a line

Olivier Dudas

We compute the Ext-algebra of the Brauer tree algebra associated to a line with no exceptional vertex.

math.RT2020★ 2 cited

Orthogonality relations for deep level Deligne--Lusztig schemes of Coxeter type

Olivier Dudas, Alexander B. Ivanov

In this paper we prove some orthogonality relations for representations arising from deep level Deligne--Lusztig schemes of Coxeter type. This generalizes previous results of Luszt…

math.RT2020★ 2 cited

Decomposition matrices for groups of Lie type in non-defining characteristic

Olivier Dudas, Gunter Malle

We determine approximations to the decomposition matrices for unipotent -blocks of several series of finite reductive groups of classical and exceptional type over $\FF_q$ of…