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In this article we address the following question, whose interest was recently renewed by problems arising in arithmetic dynamics: under which conditions does there exist a local biholomorphism between the Julia sets of two given…

Dynamical Systems · Mathematics 2022-01-12 Romain Dujardin , Charles Favre , Thomas Gauthier

We investigate the existence and geometric properties of special hyperhermitian metrics. First of all, we characterise hypercomplex structures with Obata holonomy in $\mathrm{SL}(n, \mathbb{H})$ in terms of the existence of quaternionic…

Differential Geometry · Mathematics 2026-04-27 Elia Fusi , Giovanni Gentili

For any geodesic metric space $X$, we give a complete cohomological characterisation of the hyperbolicity of $X$ in terms of vanishing of its second $\ell^{\infty}$-cohomology. We extend this result to the relative setting of $X$ with a…

Group Theory · Mathematics 2025-11-27 Francesco Milizia , Nansen Petrosyan , Alessandro Sisto , Vladimir Vankov

We study relations between maps between relatively hyperbolic groups/spaces and quasisymmetric embeddings between their boundaries. More specifically, we establish a correspondence between (not necessarily coarsely surjective)…

Geometric Topology · Mathematics 2025-05-14 John M. Mackay , Alessandro Sisto

We consider a class of endomorphisms that contains a set of piecewise partially hyperbolic dynamics semi-conjugated to non-uniformly expanding maps. Our goal is to study a class of endomorphisms that preserve a foliation that is almost…

Dynamical Systems · Mathematics 2025-04-23 Rafael Bilbao , Ricardo Bioni , Rafael Lucena

We derive a sufficient condition for topological horseshoe and uniform hyperbolicity of a 4-dimensional symplectic map, which is introduced by coupling the two 2-dimensional H\'enon maps via linear terms. The coupled H\'enon map thus…

Chaotic Dynamics · Physics 2023-03-13 Keisuke Fujioka , Ryota Kogawa , Jizhou Li , Akira Shudo

In this paper, we investigate the $\partial$-complex on weighted Bergman spaces on Hermitian manifolds satisfying a certain holomorphicity/duality condition. This generalizes the situation of the Segal-Bargmann space in $\mathbb{C}^n$,…

Complex Variables · Mathematics 2020-12-09 Friedrich Haslinger , Duong Ngoc Son

A partially hyperbolic diffeomorphism $f$ has quasi-shadowing property if for any pseudo orbit ${x_k}_{k\in \mathbb{Z}}$, there is a sequence of points ${y_k}_{k\in \mathbb{Z}}$ tracing it in which $y_{k+1}$ is obtained from $f(y_k)$ by a…

Dynamical Systems · Mathematics 2019-02-20 Huyi Hu , Yunhua Zhou , Yujun Zhu

Some of the guiding problems in partially hyperbolic systems are the following: (1) Examples, (2) Properties of invariant foliations, (3) Accessibility, (4) Ergodicity, (5) Lyapunov exponents, (6) Integrability of central foliations, (7)…

Dynamical Systems · Mathematics 2007-05-23 F. Rodriguez Hertz , M. A. Rodriguez Hertz , R. Ures

We study the convergence of graphs consisting of finitely many internal rays for degenerating Newton maps. We state a sufficient condition to guarantee the convergence. As an application, we investigate the boundedness of hyperbolic…

Dynamical Systems · Mathematics 2019-11-22 Yan Gao , Hongming Nie

This paper continues our investigation of the dynamics of polynomial diffeomorphisms of C^2. We introduce a dynamical property of polynomial diffeomorphisms that generalizes hyperbolicity in the way that semi-hyperbolicity generalizes…

Dynamical Systems · Mathematics 2007-05-23 Eric Bedford , John Smillie

Let $\Omega$ be a bounded, convex domain in a separable Hilbert space. The authors prove a version of the theorem of Bun Wong, which asserts that if such a domain admits an automorphism orbit accumulating at a strongly pseudoconvex boundary…

Complex Variables · Mathematics 2007-05-23 Kang-Tae Kim , Steven G. Krantz

In this article we prove a necessary and a sufficient condition for a finite subset of the special linear group to be dominated. These conditions are purely geometric in nature, as they only involve the trace and the eigenvectors of the…

Dynamical Systems · Mathematics 2026-05-11 Argyrios Christodoulou

We determine the image of the (strongly) parabolic Hitchin map for all parabolics in classical groups and $G_2$. Surprisingly, we find that the image is isomorphic to an affine space in all cases, except for certain "bad parabolics" in type…

Algebraic Geometry · Mathematics 2018-06-11 David Baraglia , Masoud Kamgarpour

In this paper, the equilibrium states for a non-degenerate $ C^2 $ partially hyperbolic endomorphism $f$ on a closed Riemannian manifold $M$ with one-dimensional center bundle are investigated. Applying the criterion of Climenhaga-Thompson…

Dynamical Systems · Mathematics 2025-12-18 Yifan Zhang , Yujun Zhu

We prove John Hubbard's conjecture on the topological complexity of the hyperbolic horseshoe locus of the complex H\'enon map. Indeed, we show that there exist several non-trivial loops in the locus which generate infinitely many mutually…

Dynamical Systems · Mathematics 2007-05-23 Zin Arai

We prove a generalization of the fellow traveller property for a certain type of quasi-geodesics and use it to present three equivalent geometric formulations of the bounded reduction property and prove that it is equivalent to preservation…

Group Theory · Mathematics 2021-10-07 André Carvalho

We show that an invariant Fatou component of a hyperbolic transcendental entire function is a bounded Jordan domain (in fact, a quasidisc) if and only if it contains only finitely many critical points and no asymptotic curves. We use this…

Dynamical Systems · Mathematics 2016-02-11 Walter Bergweiler , Núria Fagella , Lasse Rempe-Gillen

We announce some results towards the classification of partially hyperbolic diffeomorphisms on 3-manifolds, and outline the proofs in the case when the diffeomorphism is dynamically coherent. Detailed proofs are long and technical and will…

Dynamical Systems · Mathematics 2018-01-03 Thomas Barthelmé , Sergio Fenley , Steven Frankel , Rafael Potrie

We consider partially hyperbolic diffeomorphisms $f$ with a one-dimensional central direction such that the unstable entropy exceeds the stable entropy. Our main result proves that such maps have a finite number of ergodic measures of…

Dynamical Systems · Mathematics 2024-05-09 Juan Carlos Mongez , Maria Jose Pacifico