F. Kassel

collaborators

3 papers

math.GT2025

$H^{p, q}$ -convex cocompactness and higher higher TeichmÃ¼ller spaces

Jonas Beyrer, Fanny Kassel

For any integers $p \geq 2$ and $q \geq 1$ , let $H^{p, q}$ be the pseudo-Riemannian hyperbolic space of signature $(p, q)$ . We prove that if $I^$ is the fundamental group of a…

math.RT2024

Spectral analysis on standard locally homogeneous spaces

Fanny Kassel, Toshiyuki Kobayashi

Let $X = G / H$ be a reductive homogeneous space with $H$ noncompact, endowed with a $G$ -invariant pseudo-Riemannian structure. Let $L$ be a reductive subgroup of $G$ acting properly o…

math.GR2024

Discrete subgroups of semisimple Lie groups, beyond lattices

Fanny Kassel

Discrete subgroups of SL(2,R) are well understood, and classified by the geometry of the corresponding hyperbolic surfaces. Discrete subgroups of higher-rank semisimple Lie groups,…

Hp,q-convex cocompactness and higher higher TeichmÃ¼ller spaces

Spectral analysis on standard locally homogeneous spaces

Discrete subgroups of semisimple Lie groups, beyond lattices

$H^{p, q}$ -convex cocompactness and higher higher TeichmÃ¼ller spaces