activity
20112026
most citedAnosov representations and dominated splittings

78 citations · 155 across the 14 of their papers we have counts for

collaborators

17 papers

math.GT2026

On local minimality of Hausdorff dimension for round limit sets

Sami Douba, Andrés Sambarino, Franco Vargas Pallete

We address a question of Canary--Taylor and Canary--Minsky--Taylor for sufficiently symmetric compact hyperbolic -orbifolds with totally geodesic boundary. We give sufficient co…

math.GT2026

Bending, entropy and proper affine actions of surface groups

Martin Bridgeman, Richard Canary, Andres Sambarino

We show that for any closed surface there is an explict neighborhood of the fuchsian locus in quasifuchsian space such that for every representation $ρ\in…

math.GR2024

Asymptotic properties of infinitesimal characters and applications

Andrés Sambarino

Inspired by Benoist, we study objects linked to integrable tangent vectors on the character variety of a semi-group with values in a semi-simple real-algebraic group $\mathsf G…

math.GR2023

Metric properties of boundary maps, Hilbert entropy and non-differentiability

Beatrice Pozzetti, Andrés Sambarino

We interpret the Hilbert entropy of a convex projective structure on a closed higher-genus surface as the Hausdorff dimension of the non-differentiability points of the limit set i…

math.DS2022

A report on an ergodic dichotomy

Andrés Sambarino

We establish (some directions) of a Ledrappier correspondence between Hölder cocycles, Patterson-Sullivan measures, etc for word-hyperbolic groups with metric-Anosov Mineyev flow.…

math.RT2020★ 10 cited

Infinitesimal Zariski closures of positive representations

Andrés Sambarino

We classify the (semi-simple parts of the) Lie algebra of the Zariski closure of a discrete subgroup of a split simple real-algebraic Lie group, whose limit sets are minimal and su…

math.DG2020

Hessian of Hausdorff dimension on purely imaginary directions

Martin Bridgeman, Beatrice Pozzetti, Andrés Sambarino +1

We extend classical results of Bridgeman-Taylor and McMullen on the Hessian of the Hausdorff dimension on quasi-Fuchsian space to the class of (1,1,2)-hyperconvex representations,…

math.DG2019★ 19 cited

Anosov representations with Lipschitz limit set

Beatrice Pozzetti, Andrés Sambarino, Anna Wienhard

We study Anosov representations whose limit set has intermediate regularity, namely is a Lipschitz submanifold of a flag manifold. We introduce an explicit linear functional, the u…

math.DG2019★ 2 cited

Conformality for a robust class of non-conformal attractors

Beatrice Pozzetti, Andrés Sambarino, Anna Wienhard

In this paper we investigate the Hausdorff dimension of limit sets of Anosov representations. In this context we revisit and extend the framework of hyperconvex representations and…

math.DG2017

Simple root flows for Hitchin representations

Martin Bridgeman, Richard Canary, François Labourie +1

We study simple root flows and Liouville currents for Hitchin representations. We show that the Liouville current is associated to the measure of maximal entropy for a simple root…

math.GR2016★ 78 cited

Anosov representations and dominated splittings

Jairo Bochi, Rafael Potrie, Andrés Sambarino

We provide a link between Anosov representations introduced by Labourie and dominated splitting of linear cocycles. This allows us to obtain equivalent characterizations for Anosov…

math.GR2014★ 1 cited

Eigenvalues and Entropy of a Hitchin representation

Rafael Potrie, Andrés Sambarino

We show that the critical exponent of a representation in the Hitchin component of is bounded above, the least upper bound being attained only in the Fuchsian l…

math.GR2013

On entropy, regularity and rigidity for convex representations of hyperbolic manifolds

Andrés Sambarino

Given a convex representation of a convex co-compact group of we find upper bounds for the quantity where is the…

math.DG2013★ 2 cited

The pressure metric for Anosov representations

Martin Bridgeman, Richard Canary, Francois Labourie +1

Using the thermodynamics formalism, we introduce a notion of intersection for projective Anosov representations, show analyticity results for the intersection and the entropy, and…

math.GR2012

The orbital counting problem for hyperconvex representations

Andres Sambarino

We give a precise counting result on the symmetric space of a noncompact real algebraic semisimple group for a class of discrete subgroups of that contains, for example, r…

math.GR2012★ 43 cited

Hyperconvex representations and exponential growth

Andres Sambarino

Let be a real algebraic semi-simple Lie group and be the fundamental group of a compact negatively curved manifold. In this article we study the limit cone, introduced by B…

math.GR2011

Quantitative properties of convex representations

Andrés Sambarino

Let be a discrete subgroup of and fix some euclidean norm on Let be the number of elements in whose operator norm is $\leq t.…