2 citations · 3 across the 4 of their papers we have counts for
4 papers
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,…
Groupes de surface dans les réseaux des groupes de Lie semi-simples [d'après J. Kahn, V. Marković, U. Hamenstädt, F. Labourie et S. Mozes]
Fanny Kassel
A cocompact lattice in a semisimple Lie group is a discrete subgroup such that the quotient is compact. Does such a lattice always contain a surface group, i.e. a sub…
Margulis spacetimes via the arc complex
Jeffrey Danciger, François Guéritaud, Fanny Kassel
We study strip deformations of convex cocompact hyperbolic surfaces, defined by inserting hyperbolic strips along a collection of disjoint geodesic arcs properly embedded in the su…
Some open questions on anti-de Sitter geometry
Thierry Barbot, Francesco Bonsante, Jeffrey Danciger +6
We present a list of open questions on various aspects of AdS geometry, that is, the geometry of Lorentz spaces of constant curvature -1. When possible we point out relations with…