Results 21 to 30 of about 15,159 (191)

Metrizable space of multivalued maps

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2021
In this article we define a metrizable space of multivalued maps. We show that the metric defined in this space is closely related to the homotopy of multivalued maps.
Mirosław Ślosarski
doaj  

The character of free topological groups II

open access: yesApplied General Topology, 2005
A systematic analysis is made of the character of the free and free abelian topological groups on metrizable spaces and compact spaces, and on certain other closely related spaces.
Peter Nickolas, Mikhail Tkachenko
doaj   +1 more source

Reconstructing compact metrizable spaces

open access: yesProceedings of the American Mathematical Society, 2016
15 pages, 2 ...
Gartside, P, Pitz, M, Suabedissen, R
openaire   +4 more sources

On the $C_k$-stable closure of the class of (separable) metrizable spaces

open access: yes, 2015
Denote by $\mathbf C_k[\mathfrak M]$ the $C_k$-stable closure of the class $\mathfrak M$ of all metrizable spaces, i.e., $\mathbf C_k[\mathfrak M]$ is the smallest class of topological spaces that contains $\mathfrak M$ and is closed under taking ...
Banakh, Taras, Gabriyelyan, Saak
core   +1 more source

The D-Property of Finite Unions of t-Metrizable Spaces and Certain Function Spaces

open access: yesJournal of Function Spaces and Applications, 2013
The additivity of D-property is studied on t-metrizable spaces and certain function spaces. It is shown that a space of countable tightness is a D-space provided that it is the union of finitely many t-metrizable subspaces, or function spaces Cp(Xi ...
Xin Zhang, Hongfeng Guo
doaj   +1 more source

On the Intuitionistic fuzzy topological (metric and normed) spaces

open access: yes, 2005
In this paper, we define precompact set in intuitionistic fuzzy metric spaces and prove that any subset of an intuitionistic fuzzy metric space is compact if and only if it is precompact and complete.
Amini   +22 more
core   +1 more source

Almost convex metrics and Peano compactifications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
Let (X,d) denote a locally connected, connected separable metric space. We say the X is S-metrizable provided there is a topologically equivalent metric ρ on X such that (X,ρ) has Property S, i.e., for any ϵ>0, X is the union of finitely many connected ...
R. F. Dickman
doaj   +1 more source

On approximation of mappings with values in the space of continuous functions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
Using a theorem on the approximation of the identity in the Banach space  $C_u(Y)$ of all continuous functions $g:Y\rightarrow \mathbb{R}$, defined on a metrizable compact  $Y$ with the uniform norm, we prove that for a topological space $X$, a ...
H. A. Voloshyn   +2 more
doaj   +1 more source

Spaces of measurable functions

open access: yes, 2011
For a metrizable space $X$ and a finite measure space $(\Omega,\mathfrak{M},\mu)$ let $M_{\mu}(X)$ and $M^f_{\mu}(X)$ be the spaces of all equivalence classes (under the relation of equality almost everywhere mod $\mu$) of $mathfrak{M}$-measurable ...
Niemiec, Piotr
core   +1 more source

Echeloned Spaces

open access: yesForum of Mathematics, Sigma
We introduce the notion of echeloned spaces – an order-theoretic abstraction of metric spaces. The first step is to characterize metrizable echeloned spaces. It turns out that morphisms between metrizable echeloned spaces are uniformly continuous or have
Maxime Gheysens   +4 more
doaj   +1 more source

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