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Related papers: Generic bi-Lyapunov stable homoclinic classes

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Let $R$ be a unital ring satisfying the invariant basis number property, that every stably free $R$-module is free, and that the complex of partial bases of every finite rank free module is Cohen--Macaulay. This class of rings includes…

Algebraic Topology · Mathematics 2024-05-17 Calista Bernard , Jeremy Miller , Robin J. Sroka

Given a finite group action on a smooth manifold, we study the following question: if two equivariant diffeomorphisms are isotopic, must they be equivariantly isotopic? Birman-Hilden and Maclachlan-Harvey proved the answer is "yes" for most…

Geometric Topology · Mathematics 2025-09-11 Trent Lucas

The homology of configuration spaces of point-particles in manifolds has been studied intensively since the 1970s; in particular it is known to be stable if the underlying manifold is connected and open. Closely related to configuration…

Algebraic Topology · Mathematics 2020-10-06 Martin Palmer

We study $3$-dimensional partially hyperbolic diffeomorphisms that are homotopic to the identity, focusing on the geometry and dynamics of Burago and Ivanov's center stable and center unstable \emph{branching} foliations. This extends our…

Dynamical Systems · Mathematics 2023-11-22 Thomas Barthelmé , Sergio R. Fenley , Steven Frankel , Rafael Potrie

Conditions are provided under which lack of domination of a homoclinic class yields robust heterodimensional cycles. Moreover, so-called viral homoclinic classes are studied. Viral classes have the property of generating copies of…

Dynamical Systems · Mathematics 2010-11-23 Ch. Bonatti , S. Crovisier , L. J. Díaz , N. Gourmelon

We show rational homological stability for the homotopy automorphisms and block diffeomorphims of iterated connected sums of products of spheres. The spheres can have different dimension, but need to satisfy a certain connectivity…

Algebraic Topology · Mathematics 2019-12-25 Matthias Grey

We study the orbit behavior of a four dimensional smooth symplectic diffeomorphism $f$ near a homoclinic orbit $\Gamma$ to an 1-elliptic fixed point under some natural genericity assumptions. 1-elliptic fixed point has two real eigenvalues…

Dynamical Systems · Mathematics 2015-01-26 L. Lerman , A. Markova

The aim of this paper is to prove the existence and smoothness of stable and unstable invariant manifolds for a stochastic delayed partial differential equation of parabolic type. The stochastic delayed partial differential equation is…

Dynamical Systems · Mathematics 2023-06-13 Wenjie Hu , Quanxin Zhu , Tomás Caraballo

The Generalized Smale Conjecture asserts that if M is a closed 3-manifold with constant positive curvature, then the inclusion of the group of isometries into the group of diffeomorphisms is a homotopy equivalence. For the 3-sphere, this…

Geometric Topology · Mathematics 2007-05-23 Darryl McCullough , J. H. Rubinstein

We introduce a class of orbits which may have $0$ Lyapunov exponents, but still demonstrate some sensitivity to initial conditions. We construct a countable Markov partition with a finite-to-one almost everywhere induced coding, and which…

Dynamical Systems · Mathematics 2022-03-24 Snir Ben Ovadia

We classify static manifolds which admit more than one static decomposition whenever a condition on the curvature is fullfilled. For this, we take a standard static vector field and analyze its associated one parameter family of projections…

Differential Geometry · Mathematics 2014-07-24 Manuel Gutiérrez , Benjamín Olea

We prove that every $C^1$ three-dimensional flow with positive topological entropy can be $C^1$ approximated by flows with homoclinic orbits. This extends a previous result for $C^1$ surface diffeomorphisms \cite{g}.

Dynamical Systems · Mathematics 2015-09-28 A. M. Lopez , R. J. Metzger , C. A. Morales

We consider stable minimal surfaces of genus 1 in Euclidean space and in Riemannian manifolds. Under the condition of covering stability (all finite covers are stable) we show that a genus 1 finite total curvature minimal surface in…

Differential Geometry · Mathematics 2023-03-15 Ailana Fraser , Richard Schoen

In this paper, we develop the theory of \emph{isoclinism} for regular Hom-Lie Yamaguti algebras, a class that unifies several generalizations of Lie algebras. Although isomorphism implies isoclinism by definition, the converse is not true…

Rings and Algebras · Mathematics 2025-08-05 Sania Asif , Mohamed Amin Sadraoui

Let $M$ be a closed smooth manifold and let $f:M\to M$ be a diffeomorphism. $C^1$-generically, a continuum-wise expansive satisfies Axiom A without cycles. Moreover, there is a partially hyperbolic diffeomorphism $f$ such that it is not…

Dynamical Systems · Mathematics 2016-03-08 Manseob Lee

Let f be a volume-preserving diffeomorphism of a closed C^\infty n-dimensional Riemannian manifold M: In this paper, we prove the equivalence between the following conditions: (a) f belongs to the C1-interior of the set of volume-preserving…

Dynamical Systems · Mathematics 2012-03-19 Manseob Lee

Let G be a finite group. For semi-free G-manifolds which are oriented in the sense of Waner, the homotopy classes of G-equivariant maps into a G-sphere are described in terms of their degrees, and the degrees occurring are characterized in…

Algebraic Topology · Mathematics 2020-02-13 Markus Szymik

For the universal isomonodromic deformation of an irreducible logarithmic rank two connection over a smooth complex projective curve of genus at least two, consider the family of holomorphic vector bundles over curves underlying this…

Algebraic Geometry · Mathematics 2017-09-13 Indranil Biswas , Viktoria Heu , Jacques Hurtubise

For a nondegenerate analytic system with a conserved quantity, a classic result by Lyapunov guarantees the existence of an analytic manifold of periodic orbits tangent to any two-dimensional, elliptic eigenspace of a fixed point satisfying…

Dynamical Systems · Mathematics 2019-07-16 Rafael de la Llave , Florian Kogelbauer

We prove that a C1-generic volume preserving diffeomorphism has a symbolic extension if and only if this diffeomorphism is partial hyperbolic. This result is obtained by means of good dichotomies. In particular, we prove Bonatti's…

Dynamical Systems · Mathematics 2015-05-30 Thiago Catalan