Results 71 to 80 of about 367,122 (181)

Local isometries of compact metric spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
By local isometries we mean mappings which locally preserve distances. A few of the main results are: 1. For each local isometry f f of a compact metric space ( M , ρ ) (M,\rho ) into itself there exists a unique decomposition of M M into disjoint open sets,
openaire   +1 more source

Cohomology Theories on Compact and Locally Compact Spaces

open access: yesRevista Matemática Iberoamericana, 1986
The aim of this paper is to give an expository account of the uniqueness theorem for cohomology theories on the category of locally compact Hausdorff spaces and proper continuous functions. The uniqueness theorem can be applied to give a proof of the known result that the Chern character induces an isomorphism K(X)\(\otimes {\mathbb{Q}}\cong \check H ...
openaire   +3 more sources

A compactification of locally compact spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
Every locally compact space X X has its topology determined by its 1-1 compact images and hence has a compactification ξ X \xi X obtained as the closure of the natural embedding of X X in the product of those images, just as the Stone-Čech compactification β X
openaire   +2 more sources

Topographic Gromov-Hausdorff quantum Hypertopology for Quantum Proper Metric Spaces

open access: yes, 2014
We construct a topology on the class of pointed proper quantum metric spaces which generalizes the topology of the Gromov-Hausdorff distance on proper metric spaces, and the topology of the dual propinquity on Leibniz quantum compact metric spaces.
Latremoliere, Frederic
core  

One-point extensions and local topological properties

open access: yes, 2013
A space $Y$ is called an extension of a space $X$ if $Y$ contains $X$ as a dense subspace. An extension $Y$ of $X$ is called a one-point extension of $X$ if $Y\backslash X$ is a singleton. P.
Koushesh, M. R.
core  

A locally Convex Topology on the Beurling Algebras

open access: yesپژوهش‌های ریاضی, 2019
Introduction Let G be a locally compact group with a fixed left Haar measure λ  and   be a weight function on G;  that is a Borel measurable function  with   for all .   We denote by  the set of all measurable  functions  such that ; the group algebra of 
Saeid Maghsoudi
doaj  

The generalized homotopy axiom and its consistency with Alexandroff-Čech cohomology theory.

open access: yesPracì Mìžnarodnogo Geometričnogo Centru
Let T be a connected compact metric space, r,s ∈ T be two points, and X be a locally compact paracompact space. We prove that the mappings φr, φs: X → X × T, defined by φt(x) = (x,t) for t=r, s ∈ T, induce the same homomorphisms of Alexandroff-Čech ...
Umed Karimov
doaj   +1 more source

On the Dynamics of Abstract Retarded Evolution Equations

open access: yesAbstract and Applied Analysis, 2013
This paper is concerned with the dynamics of the following abstract retarded evolution equation: in a Hilbert space , where is a self-adjoint positive-definite operator with compact resolvent and is a locally Lipschitz continuous mapping.
Desheng Li, Jinying Wei, Jintao Wang
doaj   +1 more source

Harmonic functions on locally compact groups of polynomial growth

open access: yes, 2018
We extend a theorem by Kleiner, stating that on a group with polynomial growth, the space of harmonic functions of polynomial of at most $k$ is finite dimensional, to the settings of locally compact groups equipped with measures with non-compact support.
Perl, Idan
core  

$\omega$ -cover and related spaces on the vietoris hyperspace $\mathcal F(X)$

open access: yesTạp chí Khoa học và Công nghệ
Recently, Tuyen et al. [1] showed that a space  has a $\sigma$-(P)-strong network consisting of cs-covers (resp., $cs^*$-covers) if and only if the hyperspace $\mathcal F(X)$ does, where  is one of the following properties: point finite, point countable,
Nguyen Xuan Truc   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy