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We study the geometry and dynamics of discrete infinite covolume subgroups of higher rank semisimple Lie groups. We introduce and prove the equivalence of several conditions, capturing "rank one behavior'' of discrete subgroups of higher…

Group Theory · Mathematics 2014-04-01 Michael Kapovich , Bernhard Leeb , Joan Porti

We propose several common extensions of the classes of Anosov subgroups and geometrically finite Kleinian groups among discrete subgroups of semisimple Lie groups. We relativize various dynamical and coarse geometric characterizations of…

Group Theory · Mathematics 2023-01-12 Michael Kapovich , Bernhard Leeb

We study a notion of convex cocompactness for discrete subgroups of the projective general linear group acting (not necessarily irreducibly) on real projective space, and give various characterizations. A convex cocompact group in this…

Geometric Topology · Mathematics 2023-04-19 Jeffrey Danciger , François Guéritaud , Fanny Kassel

Anosov representations give a higher-rank analogue of convex cocompactness in a rank-one Lie group which shares many of its good geometric and dynamical properties; geometric finiteness in rank one may be seen as a controlled weakening of…

Group Theory · Mathematics 2020-03-30 Feng Zhu

This survey is based on a series of lectures that we gave at MSRI in Spring 2015 and on a series of papers, mostly written jointly with Joan Porti. Our goal here is to: 1. Describe a class of discrete subgroups $\Gamma<G$ of higher rank…

Group Theory · Mathematics 2017-03-08 Michael Kapovich , Bernhard Leeb

We exhibit Anosov subgroups of $\mathsf{SL}_d(\mathbb{R})$ that do not embed discretely in any rank-$1$ simple Lie group of noncompact type, or indeed, in any finite product of such Lie groups. These subgroups are isomorphic to free…

Group Theory · Mathematics 2023-11-08 Sami Douba , Konstantinos Tsouvalas

We define a new family of discrete representations of relatively hyperbolic groups which unifies many existing definitions and examples of geometrically finite behavior in higher rank. The definition includes the relative Anosov…

Group Theory · Mathematics 2026-03-06 Theodore Weisman

We study the limit set of discrete subgroups arising from Anosov representations. Specially we study the limit set of discrete groups arising from strictly convex real projective structures and Anosov representations from a finitely…

Geometric Topology · Mathematics 2012-12-05 Inkang Kim , Sungwoon Kim

Anosov representations of word hyperbolic groups into higher-rank semisimple Lie groups are representations with finite kernel and discrete image that have strong analogies with convex cocompact representations into rank-one Lie groups.…

Geometric Topology · Mathematics 2017-09-29 Jeffrey Danciger , François Guéritaud , Fanny Kassel

In this note we give an overview of some of our recent work on Anosov representations of discrete groups into higher rank semisimple Lie groups.

Group Theory · Mathematics 2015-12-01 Michael Kapovich , Bernhard Leeb , Joan Porti

In this paper we show that many projective Anosov representations act convex cocompactly on some properly convex domain in real projective space. In particular, if a non-elementary word hyperbolic group is not commensurable to a non-trivial…

Differential Geometry · Mathematics 2022-02-10 Andrew Zimmer

Relatively dominated representations give a common generalization of geometrically finiteness in rank one on the one hand, and the Anosov condition which serves as a higher-rank analogue of convex cocompactness on the other. This note…

Group Theory · Mathematics 2022-03-03 Feng Zhu

We provide characterizations of Anosov representations of word hyperbolic groups into real semisimple Lie groups in terms of the existence of equivariant limit maps on the Gromov boundary, the Cartan property and the uniform gap summation…

Geometric Topology · Mathematics 2025-10-14 Konstantinos Tsouvalas

We study through the lens of Anosov representations the dynamical properties of reducible suspensions of linear representations of non-elementary hyperbolic groups, which are linear representations preserving and acting weakly unipotently…

Group Theory · Mathematics 2024-04-03 Max Lahn

The convex-cocompact subgroups are central in hyperbolic geometry and more generally in negative curvature. Labourie introduced in 2005 the notion of 'Anosov' subgroup which proves progressively to be the right generalizations of…

Group Theory · Mathematics 2020-02-17 Olivier Guichard

We introduce a generalization of the notion of Anosov representations by restricting to invariant closed geodesic subflows. Examples of such representations include many non-discrete representations with good geometric properties, such as…

Differential Geometry · Mathematics 2023-03-20 Tianqi Wang

We are motivated by a conjecture of A. and S. Katok to study the smooth cohomologies of a family of Weyl chamber flows. The conjecture is a natural generalization of the Livshitz Theorem to Anosov actions by higher-rank abelian groups; it…

Dynamical Systems · Mathematics 2013-07-12 Felipe A. Ramirez

We show that most homogeneous Anosov actions of higher rank Abelian groups are locally smoothly rigid (up to an automorphism). This result is the main part in the proof of local smooth rigidity for two very different types of algebraic…

dg-ga · Mathematics 2016-08-31 A. Katok , R. J. Spatzier

We establish an extension of the Hopf-Tsuji-Sullivan dichotomy to any Zariski dense discrete subgroup of a semisimple real algebraic group $G$. We then apply this dichotomy to Anosov subgroups of $G$, which surprisingly presents a different…

Dynamical Systems · Mathematics 2022-12-02 Marc Burger , Or Landesberg , Minju Lee , Hee Oh

We prove that finitely generated, purely pseudo-Anosov subgroups of the genus $2$ handlebody group are convex cocompact.

Geometric Topology · Mathematics 2025-06-02 Marissa Chesser , Christopher J. Leininger
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