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Related papers: Topological groups: where to from here?

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In analogy with the classical theory of topological groups, for finitely complete categories enriched with Grothendieck topologies, we provide the concepts of localized G-topological space, initial Grothendieck topologies and continuous…

Category Theory · Mathematics 2019-09-27 Joaquin Luna-Torres

This paper is a survey of some properties of the braid groups and related groups that lead to questions on mapping class groups.

Group Theory · Mathematics 2007-05-23 Luis Paris

We classify all groups which can occur as the topological symmetry group of some embedding of the Heawood graph in $S^3$.

Geometric Topology · Mathematics 2019-10-21 Emille Davie Lawrence , Erica Flapan , Robin T. Wilson

This is a light survey article about the origins of contact and symplectic topology in dynamics and the more recent developments in the field. In lieu of formulas, numerous anecdotes are given.

Symplectic Geometry · Mathematics 2016-11-09 Jo Nelson

This text surveys classical and recent results in the field of amenability of groups, from a combinatorial standpoint. It has served as the support of courses at the University of G\"ottingen and the \'Ecole Normale Sup\'erieure. The goals…

Group Theory · Mathematics 2017-05-12 Laurent Bartholdi

In this paper, we briefly review some of the known results concerning the cohomological structures of the mapping class group of surfaces, the outer automorphism group of free groups, the diffeomorphism group of surfaces as well as various…

Geometric Topology · Mathematics 2007-05-23 Shigeyuki Morita

A topological group $G$ is called an $M_\omega$-group if it admits a countable cover $\K$ by closed metrizable subspaces of $G$ such that a subset $U$ of $G$ is open in $G$ if and only if $U\cap K$ is open in $K$ for every $K\in\K$. It is…

General Topology · Mathematics 2011-08-23 Taras Banakh

In this paper, we give an introduction for rough groups and rough homomorphisms. Then we present some properties related to topological rough subgroups and rough subsets. We construct the product of topological rough groups and give an…

Group Theory · Mathematics 2019-09-06 Nof Alharbi , Alla Altassan , Hassen Aydi , Cenap Ozel

Following the recent advances in the study of groups of circle diffeomorphisms, we describe an efficient way of classifying the topological dynamics of locally discrete, finitely generated, virtually free subgroups of the group…

We will study several subgroups of continuous full groups of one-sided topological Markov shifts from the view points of cohomology groups of full group actions on the shift spaces. We also study continuous orbit equivalence and strongly…

Dynamical Systems · Mathematics 2020-12-23 Kengo Matsumoto

This paper is a survey, with few proofs, of ideas and notions related to self-similarity of groups, semi-groups and their actions. It attempts to relate these concepts to more familiar ones, such as fractals, self-similar sets, and…

Group Theory · Mathematics 2009-11-29 Laurent Bartholdi , Rostislav I. Grigorchuk , Volodymyr V. Nekrashevych

The {\em topological symmetry group} of an embedding $\Gamma$ of an abstract graph $\gamma$ in $S^3$ is the group of automorphisms of $\gamma$ which can be realized by homeomorphisms of the pair $(S^3, \Gamma)$. These groups are motivated…

Geometric Topology · Mathematics 2023-06-26 Deion Elzie , Samir Fridhi , Blake Mellor , Daniel Silva , Robin Wilson

We classify all groups which can occur as the orientation preserving topological symmetry group of some embedding of a M\"{o}bius ladder graph in $S^3$.

Geometric Topology · Mathematics 2013-06-25 Erica Flapan , Emille Davie Lawrence

This is a draft of a book submitted for publication by the AMS. Its theme is the remarkable interplay, accelerating in the last few decades, between topology and the theory of orderable groups, with applications in both directions. It…

Geometric Topology · Mathematics 2015-11-17 Adam Clay , Dale Rolfsen

On the one hand the algebras of linear operators here act on finite-dimensional vector spaces, and on the other hand the point of view is generally an analysts'. Also, one might think of algebras as being used to add more data to basic…

Classical Analysis and ODEs · Mathematics 2007-05-23 Stephen Semmes

In this paper, we pose the concepts of pre-topological groups and some generalizations of pre-topological groups. First, we systematically investigate some basic properties of pre-topological groups; in particular, we prove that each…

General Topology · Mathematics 2022-03-22 Fucai Lin , Ting Wu , Yufan Xie , Meng Bao

A brief introduction to universal algebra and the theory of topological algebras, their varieties, and free topological algebras is presented. Free topological Mal'tsev algebras are studied. Their properties, relationship with topological…

General Mathematics · Mathematics 2024-12-17 Ol'ga V. Sipacheva , Aleksandr A. Solonkov

We give a complete description of the topological spaces $X$ such that the free abelian topological group $A(X)$ embeds into the free abelian topological group $A(I)$ of the closed unit interval. In particular, the free abelian topological…

funct-an · Mathematics 2008-02-03 A. G. Leiderman , S. A. Morris , V. G. Pestov

The structure of topological spaces is analysed here through the lenses of fibrous preorders. Each topological space has an associated fibrous preorder and those fibrous preorders which return a topological space are called spacial. A…

General Topology · Mathematics 2021-02-22 Nelson Martins-Ferreira

We consider automorphism groups of some countably categorical structures and their precompact expansions. We prove that automorphism groups of omega-stable omega-categorical structures have metrizable universal minimal flows. We also study…

Logic · Mathematics 2014-12-23 Aleksander Ivanov
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