Results 11 to 20 of about 15,159 (191)

A function space from a compact metrizable space to a dendrite with the hypo-graph topology

open access: yesOpen Mathematics, 2015
Let X be an infinite compact metrizable space having only a finite number of isolated points and Y be a non-degenerate dendrite with a distinguished end point v.
Yang Hanbiao   +2 more
doaj   +2 more sources

On the weak and pointwise topologies in function spaces [PDF]

open access: yes, 2015
For a compact space $K$ we denote by $C_w(K)$ ($C_p(K)$) the space of continuous real-valued functions on $K$ endowed with the weak (pointwise) topology. In this paper we address the following basic question which seems to be open: Suppose that $K$ is an
Krupski, Mikołaj
core   +2 more sources

Extensions of maps to the projective plane [PDF]

open access: yes, 2005
It is proved that for a 3-dimensional compact metrizable space X the infinite real projective space is an absolute extensor of X if and only if the real projective plane is an absolute extensor of X.Comment: Published by Algebraic and Geometric Topology ...
Dydak, Jerzy, Levin, Michael
core   +1 more source

Locally n-Connected Compacta and UVn-Maps

open access: yesAnalysis and Geometry in Metric Spaces, 2015
We provide a machinery for transferring some properties of metrizable ANR-spaces to metrizable LCn-spaces. As a result, we show that for completely metrizable spaces the properties ALCn, LCn and WLCn coincide to each other.
Valov V.
doaj   +1 more source

$\omega$-Jointly Metrizable Spaces [PDF]

open access: yesMissouri Journal of Mathematical Sciences, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Connected metrizable subtopologies and partitions into copies of the Cantor set

open access: yesApplied General Topology, 2006
We prove under Martin’s Axiom that every separable metrizable space represented as the union of less than 2 ω zero-dimensional compact subsets is zero-dimensional. On the other hand, we show in ZFC that every separable completely metrizable space without
Irina Druzhinina
doaj   +1 more source

Metrizability of Adjunction Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
In a recent conversation with E. A. Michael and D. Hyman the following natural question was raised: Are the M-spaces of Hyman (see Definition 3.1) metrizable whenever they are first countable? We will answer this question affirmatively. Indeed, we will prove the somewhat stronger result that the M-spaces of Hyman are metrizable whenever they are of ...
openaire   +2 more sources

Function spaces of completely metrizable spaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1993
Let X X and Y Y be metric spaces and let ϕ : C p ( X ) → C p ( Y ) \phi :{C_p}(X) \to {C_p}(Y) (resp. ϕ :
Baars, Jan, de Groot, Joost, Pelant, Jan
openaire   +2 more sources

Free Subspaces of Free Locally Convex Spaces

open access: yesJournal of Function Spaces, 2018
If X and Y are Tychonoff spaces, let L(X) and L(Y) be the free locally convex space over X and Y, respectively. For general X and Y, the question of whether L(X) can be embedded as a topological vector subspace of L(Y) is difficult.
Saak S. Gabriyelyan, Sidney A. Morris
doaj   +1 more source

Metrizations of Projective Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
A two-dimensional G-space,1 in which the geodesic through two distinct points is unique, is either homeomorphic to the plane E2 and all geodesics are isometric to a straight line, or it is homeomorphic to the projective plane p2 and all geodesics are isometric to the same circle, see [1, ??10 and 31]. Two problems arise in either case: (1) To determine
openaire   +1 more source

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