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Related papers: Recoding the Classic H\'enon-Devaney Map

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Fix a noetherian scheme S. For any flat map f: X->Y of separated essentially-finite-type perfect S-schemes we define a canonical derived-category map c(f):\H(X)->f^!\H(Y), the fundamental class of f, where \H(Z) is the (pre-)Hochschild…

Algebraic Geometry · Mathematics 2015-11-20 Leovigildo Alonso Tarrío , Ana Jeremías López , Joseph Lipman

We consider a generalized Riemann-Hurwitz formula as it may be applied to rational maps between projective varieties having an indeterminacy set and fold-like singularities. The case of a holomorphic branched covering map is recalled. Then…

Algebraic Topology · Mathematics 2016-02-10 James F. Glazebrook , Alberto Verjovsky

We prove that when assuming suitable non-degeneracy conditions equivariant harmonic maps into symmetric spaces of non-compact type depend in a real analytic fashion on the representation they are associated to. The main tool in the proof is…

Differential Geometry · Mathematics 2020-07-29 Ivo Slegers

This article presents the formal proof of correctness for a plane Delaunay triangulation algorithm. It consists in repeating a sequence of edge flippings from an initial triangulation until the Delaunay property is achieved. To describe…

Logic in Computer Science · Computer Science 2010-07-26 Jean-François Dufourd , Yves Bertot

We describe the relation of $r$-similarity and finite-order invariants on the homotopy set $[S^1,Y]=\pi_1(Y)$.

Algebraic Topology · Mathematics 2026-02-16 S. S. Podkorytov

We construct explicit global homotopies for differential Hochschild cochains in differential geometry, thereby upgrading the classical Hochschild-Kostant-Rosenberg map to a deformation retract. Our approach combines two key techniques: a…

Differential Geometry · Mathematics 2026-05-01 Marvin Dippell , Chiara Esposito , Jonas Schnitzer , Stefan Waldmann

We propose global surjectivity theorems of differentiable maps based on second order conditions. Using the homotopy continuation method, we demonstrate that, for a $C^2$ differentiable map from a Hilbert space to a finite-dimensional…

Classical Analysis and ODEs · Mathematics 2025-10-14 Yacine Chitour , Zhengping Ji , Emmanuel Trélat

We study topological entropy of exactly Devaney chaotic maps on totally regular continua, i.e. on (topologically) rectifiable curves. After introducing the so-called P-Lipschitz maps (where P is a finite invariant set) we give an upper…

Dynamical Systems · Mathematics 2012-03-14 Vladimír Špitalský

For area-preserving H\'enon-like maps and their compositions, we consider smooth perturbations that keep the reversibility of the initial maps but destroy their conservativity. For constructing such perturbations, we use two methods, the…

Dynamical Systems · Mathematics 2020-06-05 M. S. Gonchenko , S. V. Gonchenko , K. Safonov

Classical Delaunay surfaces are highly symmetric constant mean curvature (CMC) submanifolds of space forms. We prove the existence of Delaunay-type hypersurfaces in a large class of compact manifolds, using the geometry of cohomogeneity one…

Differential Geometry · Mathematics 2016-08-01 Renato G. Bettiol , Paolo Piccione

We describe a general method of arithmetic coding of geodesics on the modular surface based on a two parameter family of continued fraction transformations studied previously by the authors. The finite rectangular structure of the…

Dynamical Systems · Mathematics 2011-06-01 Svetlana Katok , Ilie Ugarcovici

The classical Hopf invariant is defined for a map f: S^r -> X. Here we define `hcat' which is some kind of Hopf invariant built with a construction in Ganea's style, valid for maps not only on spheres but more generally on a `relative…

Algebraic Topology · Mathematics 2025-03-18 Jean-Paul Doeraene , Mohammed El Haouari

Consider the standard family of complex H\'enon maps $H(x,y) = (p(x) - ay, x)$, where $p$ is a quadratic polynomial and $a$ is a complex parameter. Let $U^{+}$ be the set of points that escape to infinity under forward iterations. The…

Dynamical Systems · Mathematics 2015-03-13 Raluca Tanase

This article extends the theorem of the absence of wandering domains from unimodal maps to infinitely period-doubling renormalizable H\'enon-like maps in the strongly dissipative (area contracting) regime. The theorem solves an open problem…

Dynamical Systems · Mathematics 2019-07-25 Dyi-Shing Ou

In this note, we generalize biharmonic equation for rotationally symmetric maps ([4], [16], [10]) to equivariant maps between model spaces and use it to give a complete classification of rotationally symmetric conformal biharmonic maps from…

Differential Geometry · Mathematics 2019-10-08 Ye-Lin Ou

This paper presents a general and systematic discussion of various symbolic representations of iterated maps through subshifts. We give a unified model for all continuous maps on a metric space, by representing a map through a general…

Chaotic Dynamics · Physics 2007-05-23 Xin-Chu Fu , Weiping Lu , Peter Ashwin , Jinqiao Duan

We consider a length functional for $C^1$ curves of fixed degree in graded manifolds equipped with a Riemannian metric. The first variation of this length functional can be computed only if the curve can be deformed in a suitable sense, and…

Metric Geometry · Mathematics 2021-10-14 Giovanna Citti , Gianmarco Giovannardi , Manuel Ritoré

We describe a homotopical version of the relational and gluing models of type theory, and generalize it to inverse diagrams and oplax limits. Our method uses the Reedy homotopy theory on inverse diagrams, and relies on the fact that Reedy…

Category Theory · Mathematics 2019-02-20 Michael Shulman

Let G be a connected reductive group. We define a map from the set of unipotent classes in G to the set of conjugacy classes in the Weyl group (assuming that the characteristic is not bad). This map is a one sided inverse of a map in the…

Representation Theory · Mathematics 2010-08-17 G. Lusztig

We extend the renormalisation operator introduced in \cite{dCML} from period-doubling H\'enon-like maps to H\'enon-like maps with arbitrary stationary combinatorics. We show the renormalisation picture holds also holds in this case if the…

Dynamical Systems · Mathematics 2010-02-23 P. E. Hazard