activity
20132026
most citedThe geometry of maximal representations of surface groups into SO(2,n)

39 citations · 78 across the 18 of their papers we have counts for

collaborators
Showing math.GTShow all

10 papers · 1 filter

math.GT2026

Compact quotients of homogeneous spaces and homotopy theory of sphere bundles

Fanny Kassel, Yosuke Morita, Nicolas Tholozan

A reductive homogeneous space is always diffeomorphic to the normal bundle of an orbit of a maximal compact subgroup of . We prove that if admits compact quotients,…

math.GT2026

Positive representations over real closed fields

Xenia Flamm, Nicolas Tholozan, Tianqi Wang +1

We develop the theory of -positive representations from general Fuchsian groups to linear groups over real closed fields. Our definition, which does not assume the boundary map…

math.GT2023

Chern-Simons theory and cohomological invariants of representation varieties

Nicolas Tholozan

We prove a general local rigidity theorem for pull-backs of homogeneous forms on reductive symmetric spaces under representations of discrete groups. One application of the theorem…

math.GT2023

Simple Anosov representations of closed surface groups

Nicolas Tholozan, Tianqi Wang

We introduce and study \emph{simple Anosov representations} of closed hyperbolic surface groups, analogous to Minsky's \emph{primitive stable representations} of free groups. We pr…

math.GT2023

Fiber bundles associated with Anosov representations

Daniele Alessandrini, Sara Maloni, Nicolas Tholozan +1

Anosov representations of a hyperbolic group into a semisimple Lie group are known to admit cocompact domains of discontinuity in flag varieties , endowing the com…

math.GT2018★ 1 cited

Compact connected components in relative character varieties of punctured spheres

Nicolas Tholozan, Jérémy Toulisse

We prove that some relative character varieties of the fundamental group of a punctured sphere into the Hermitian Lie groups admit compact connected components.…

math.GT2016

Super-maximal representations from fundamental groups of punctured surfaces to

Bertrand Deroin, Nicolas Tholozan

We study a particular class of representations from the fundamental groups of punctured spheres to the group (and their moduli spaces), that we…

math.GT2015★ 8 cited

Volume and non-existence of compact Clifford-Klein forms

Nicolas Tholozan

This article studies the volume of compact quotients of reductive homogeneous spaces. Let be a reductive homogeneous space and a discrete subgroup of acting properly…

math.GT2015★ 9 cited

The Volume of complete anti-de Sitter 3-manifolds

Nicolas Tholozan

Up to a finite cover, closed anti-de Sitter -manifolds are quotients of by a discrete subgroup of of the form…

math.GT2014★ 6 cited

Dominating surface group representations and deforming closed AdS 3-manifolds

Nicolas Tholozan

In a previous paper by Deroin-Tholozan, the authors construct a map from the Teichmüller space of to itself and prove that, when has sectional curvature $\leq…