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Related papers: Some notes on property A

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We present the notion of asymptotically large depth for a metric space which is (a priory) weaker than having subexponential asymptotic dimension growth and (a priory) stronger than property A.

Metric Geometry · Mathematics 2016-01-05 Izhar Oppenheim

We prove the following two results for a given uniformly locally finite metric space with Yu's property A: 1) The group of outer automorphisms of its uniform Roe algebra is isomorphic to its group of bijective coarse equivalences modulo…

Operator Algebras · Mathematics 2020-07-29 Bruno de Mendonça Braga , Alessandro Vignati

The concept of Property (II) was introduced and characterized by Chen and Lin \cite{CL}. In this work, given a compatiable collection of bounded sets $\mathcal{A}$, we provide a complete characterization of two generalizations of Property…

Functional Analysis · Mathematics 2025-03-11 Sudeshna Basu , Susmita Seal

We establish a connection between two well-studied spaces of countable groups: the space of group operations and the space of marked groups. This connection shows that the two spaces are equivalent in terms of generic properties in the…

Logic · Mathematics 2025-10-22 Tamás Kátay

Generalized topological spaces in the sense of Cs\'{a}sz\'{a}r have two main features which distinguish them from typical topologies. First, these families of subsets are not closed under intersections. Second, we allow for the possibility…

Logic · Mathematics 2019-09-23 Tomasz Witczak

The paper introduces the notion of properties $(Z_{\Pi_a})$ and $(Z_{E_a})$ as variants of Weyl's theorem and Browder's theorem for bounded linear operators acting on infinite dimensional Banach spaces. A characterization of these…

Functional Analysis · Mathematics 2016-01-14 Hassan Zariouh

In this paper, we introduce the concept of uniformly bounded fibred coarse embeddability of metric spaces, generalizing the notion of fibred coarse embeddability defined by X. Chen, Q. Wang and G. Yu. Moreover, we show its relationship with…

Functional Analysis · Mathematics 2021-07-22 Jianguo Zhang , Dapeng Zhou

Let $\mathcal{L}(X;Y)$ be the space of bounded linear operators from a Banach space $X$ to a Banach space $Y$. Given an operator-valued function $u:\mathbb{R}_{\geq 0}\rightarrow \mathcal{L}(X;Y)$, suppose that every orbit $t\mapsto u(t)x$…

Functional Analysis · Mathematics 2020-12-02 Marco Peruzzetto

We study embeddings of uniform Roe algebras which have "large range" in their codomain and the relation of those with coarse quotients between metric spaces. Among other results, we show that if $Y$ has property A and there is an embedding…

Operator Algebras · Mathematics 2021-08-27 Bruno de Mendonça Braga

Let G be a locally compact group, and let A(G) and B(G) denote its Fourier and Fourier-Stieltjes algebras. These algebras are dual objects of the group and measure algebras, L^1(G) and M(G), in a sense which generalizes the Pontryagin…

Functional Analysis · Mathematics 2010-07-28 Nico Spronk

We introduce the notion of strong embeddability for a metric space. This property lies between coarse embeddability and property A. A relative version of strong embeddability is developed in terms of a family of set maps on the metric…

Metric Geometry · Mathematics 2013-11-11 Ronghui Ji , Crichton Ogle , Bobby Ramsey

This paper deals with the following types of problems: Assume a Banach space $X$ has some property (P). Can it be embedded into some Banach space $Z$ with a finite dimensional decomposition having property (P), or more generally, having a…

Functional Analysis · Mathematics 2007-06-13 E. Odell , Th. Schlumprecht

Molodstov[10] introduced soft set theory as a new mathematical approach for solving problems having uncertainties. Many researchers worked on the findings of structures of soft set theory and applied to many problems having uncertainties.…

General Mathematics · Mathematics 2014-09-12 Sabir Hussain

The article deals with plastic and non-plastic sub-spaces $A$ of the real line ${\mathbb{R}}$ with the usual Euclidean metric $d$. It investigates non-expansive bijections, proves properties of such maps and demonstrates their relevance by…

Functional Analysis · Mathematics 2023-11-13 Dirk Langemann , Olesia Zavarzina

We deal with the existence of universal members in a given cardinality for several classes. First we deal with classes of Abelian groups, specifically with the existence of universal members in cardinalities which are strong limit singular…

Logic · Mathematics 2021-09-07 Saharon Shelah

We study Property (T) for locally compact quantum groups, providing several new characterisations, especially related to operator algebraic ergodic theory. Quantum Property (T) is described in terms of the existence of various Kazhdan type…

Operator Algebras · Mathematics 2017-04-26 Matthew Daws , Adam Skalski , Ami Viselter

Some boundedness properties of function spaces (considered as topological groups) are studied.

General Topology · Mathematics 2017-10-31 L'ubica Holá , Ljubiša D. R. Kočinac

In his work on the Novikov conjecture, Yu introduced Property $A$ as a readily verified criterion implying coarse embeddability. Studied subsequently as a property in its own right, Property $A$ for a discrete group is known to be…

Group Theory · Mathematics 2010-08-25 Erik Guentner , Graham A. Niblo

For locally compact groups amenability and Kazhdan's property (T) are mutually exclusive in the sense that a group having both properties is compact. This is no longer true for more general Polish groups. However, a weaker result still…

Group Theory · Mathematics 2021-02-18 Vladimir G. Pestov

We prove that a metric space with subexponential asymptotic dimension growth has Yu's property A.

Metric Geometry · Mathematics 2011-08-17 Narutaka Ozawa