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Any planar shape $P\subset \mathbb{C}$ can be embedded isometrically as part of the boundary surface $S$ of a convex subset of $\mathbb{R}^3$ such that $\partial P$ supports the positive curvature of $S$. The complement $Q = S \setminus P$…

Dynamical Systems · Mathematics 2016-12-02 Laura DeMarco , Kathryn Lindsey

We connect the mixing behaviour of random walks over a graph to the power of the local-consistency algorithm for the solution of the corresponding constraint satisfaction problem (CSP). We extend this connection to arbitrary CSPs and their…

Computational Complexity · Computer Science 2024-11-01 Lorenzo Ciardo , Stanislav Živný

Mapping class groups of locally finite graphs are the analogue of those of infinite-type surfaces, and serve as a "big" version of $\text{Out}(F_n)$. In this paper, we investigate which of these mapping class groups have a dense conjugacy…

Geometric Topology · Mathematics 2026-01-09 Rachmiel Klein

This note considers the maximal positively invariant set for polynomial discrete time dynamics subject to constraints specified by a basic semialgebraic set. The note utilizes a relatively direct, but apparently overlooked, fact stating…

Dynamical Systems · Mathematics 2017-12-05 Saša V. Raković , Mario E. Villanueva

Let $C_v$ be a complete, algebraically closed non-archimedean field, and let $f \in C_v(z)$ be a rational function of degree $d \geq 2$. If $f$ satisfies a bounded contraction condition on its Julia set, we prove that small perturbations of…

Dynamical Systems · Mathematics 2021-12-14 Robert L. Benedetto , Junghun Lee

We introduce a notion of asymptotically orthonormal polynomials for a Borel measure $\mu$ with compact nonpolar support in $\mathbb{C}$. Such sequences of polynomials have similar convergence properties of the sequences of Julia sets and…

Dynamical Systems · Mathematics 2020-11-17 Signe Emalia Jensen , Carsten Lunde Petersen

Hereditarily non uniformly perfect (HNUP) sets were introduced by Stankewitz, Sugawa, and Sumi in \cite{SSS} who gave several examples of such sets based on Cantor set-like constructions using nested intervals. For non-autonomous iteration…

Dynamical Systems · Mathematics 2025-07-18 Mark Comerford , Hiroki Sumi

Based on methods of structural convergence we provide a unifying view of local-global convergence, fitting to model theory and analysis. The general approach outlined here provides a possibility to extend the theory of local-global…

Combinatorics · Mathematics 2018-10-18 Jaroslav Nesetril , Patrice Ossona de Mendez

This paper constructs a continuous decomposition of the Sierpi\'nski curve into acyclic continua one of which is an arc. This decomposition is then used to construct another continuous decomposition of the Sierpi\'nski curve. The resulting…

Geometric Topology · Mathematics 2007-05-23 Carl R. Seaquist

We prove the existence of quadratic polynomials having a Julia set with positive Lebesgue measure in three cases: the presence of a Cremer fixed point, the presence of a Siegel disk, the presence of infinitely many (satellite)…

Dynamical Systems · Mathematics 2008-02-05 Xavier Buff , Arnaud Cheritat

We construct a canonical Green current T_f for every quasi-algebraically stable meromorphic self-map f of CP^k such that its first dynamical degree \lambda_1(f) is a simple root of its characteristic polynomial and that \lambda_1(f) > 1. We…

Complex Variables · Mathematics 2012-01-04 Viet-Anh Nguyen

We introduce a refined version of group cohomology and relate it to the space of polynomials on the group in question. We show that the polynomial cohomology with trivial coefficients admits a description in terms of ordinary cohomology…

Group Theory · Mathematics 2020-08-12 David Kyed , Henrik Densing Petersen

We study the notion of tangent-like maps, which is a transcendental analogue of polynomial-like maps. We introduce a model family analogous to quadratic polynomials, with only one free asymptotic value, and define the "Tandelbrot set" as…

Dynamical Systems · Mathematics 2026-03-17 Astorg Matthieu , Benini Anna Miriam , Fagella Núria

A graph $\Gamma$ is $k$-connected-homogeneous ($k$-CH) if $k$ is a positive integer and any isomorphism between connected induced subgraphs of order at most $k$ extends to an automorphism of $\Gamma$, and connected-homogeneous (CH) if this…

Group Theory · Mathematics 2020-03-10 Alice Devillers , Joanna B. Fawcett , Cheryl E. Praeger , Jin-Xin Zhou

The paper is devoted to establishing relationships between global and local monotonicity, as well as their maximality versions, for single-valued and set-valued mappings between finite-dimensional and infinite-dimensional spaces. We first…

Functional Analysis · Mathematics 2024-04-01 Pham Duy Khanh , Vu Vinh Huy Khoa , Juan Enrique Martínez-Legaz , Boris S. Mordukhovich

A theorem of Picard's type is proved for entire holomorphic mappings into complex projective varieties. This theorem has local character in the sense that the existence of Julia directions can be proved under a natural additional…

Complex Variables · Mathematics 2025-07-30 Alexandre Eremenko

The asymptotic behaviour of the solutions of Poincar\'e's functional equation $f(\lambda z)=p(f(z))$ ($\lambda>1$) for $p$ a real polynomial of degree $\geq2$ is studied in angular regions of the complex plain. The constancy of an occurring…

Complex Variables · Mathematics 2020-07-27 Gregory Derfel , Peter J. Grabner , Fritz Vogl

In this paper, we mainly derive monotonicity formula of generalized map using conservation law, including $\phi$-$F$ harmonic map coupled with $\phi$-$F$ symphonic map with $m$ form and potential from metric measure space, $ p $ harmonic…

Differential Geometry · Mathematics 2022-12-16 Xiangzhi Cao

Any finite union of disjoint, mutually exterior Jordan curves in the complex plane can be approximated arbitrarily well in the Hausdorff topology by polynomial Julia sets. Furthermore, the proof is constructive.

Dynamical Systems · Mathematics 2016-03-02 Kathryn A. Lindsey

We prove that the pluri-fine topology on any open set $\Omega$ in $\mathbb{C}^{n}$ is locally connected. This answers a question by Fuglede in [4]. See also Bedford [6].

Complex Variables · Mathematics 2007-05-23 Said El Marzguioui , Jan Wiegerinck