Béatrice I. Chetard

collaborators

3 papers

math.RT2021

Matrix coefficients of intertwining operators and the Bruhat order

Daniel Bump, Béatrice Chetard

Let $(π_{z}, V_{z})$ be an unramified principal series representation of a reductive group over a nonarchimedean local field, parametrized by an element $\mathbf{z…

math.RT2018

Graded character rings, Mackey functors and Tambara functors

Beatrice I. Chetard

Let $G$ be a finite group and $K$ a field of characteristic zero. the ring $R_{K} (G)$ of virtual characters of $G$ over $K$ is naturally endowed with a so-…

math.RT2018

Graded character rings of finite groups

Béatrice I. Chetard

Let $G$ be a finite group. The ring $R_{K} (G)$ of virtual characters of $G$ over the field $K$ is a $λ$ -ring; as such, it is equipped with the so-called $Γ$ -filtrat…