Results 1 to 10 of about 801 (48)
Preconvergence compactness and P-closed spaces
International Journal of Mathematics and Mathematical Sciences, 1984 In this article the major result characterizes preconvergence compactness in terms of the preconvergence closedness of second projections. Applying this result to a topological space (X,T) yields similar characterizations for H-closed, nearly compact ...
Robert A. Herrmann
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Regular-closed, Urysohn-closed and completely Hausdorff-closed spaces. [PDF]
, 1970 Horst Herrlich
semanticscholar +3 more sources
On extension functions for image space with different separation axioms [PDF]
, 2016 In this paper we study a sufficient conditions for continuous and almost continuous extensions of f to space X for an image space Y with different separation axioms.Comment: 11 ...
Osipov, Alexander V.
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A rich hierarchy of functionals of finite types [PDF]
, 2009 We are considering typed hierarchies of total, continuous functionals using complete, separable metric spaces at the base types. We pay special attention to the so called Urysohn space constructed by P. Urysohn. One of the properties of the Urysohn space
D. Lenik: +2 more
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Fraisse Limits, Ramsey Theory, and Topological Dynamics of Automorphism Groups [PDF]
, 2004 We study in this paper some connections between the Fraisse theory of amalgamation classes and ultrahomogeneous structures, Ramsey theory, and topological dynamics of automorphism groups of countable structures.Comment: 73 pages, LaTeX 2e, to appear in ...
Kechris, A. S. +2 more
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Feebly compact paratopological groups and real-valued functions [PDF]
, 2012 We present several examples of feebly compact Hausdorff paratopological groups (i.e., groups with continuous multiplication) which provide answers to a number of questions posed in the literature.
Sanchis López, Manuel +1 more
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Domain Representations Induced by Dyadic Subbases [PDF]
, 2015 We study domain representations induced by dyadic subbases and show that a proper dyadic subbase S of a second-countable regular space X induces an embedding of X in the set of minimal limit elements of a subdomain D of $\{0,1,\perp\}\omega$.
Tsuiki, Hideki, Tsukamoyo, Yasuyuki
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Connected Hausdorff topologies weaker than the Euclidean topology of the rationals
Publicationes mathematicae (Debrecen), 1997 We prove that for every countable regular space without isolated points there exists a weaker topology such that the new space is either first countable, connected, locally connected Hausdorff (respectively anti-Urysohn, Urysohn, or almost regular) or ...
T. Tzannes
semanticscholar +1 more source
Lipschitz functions on topometric spaces
, 2013 We study functions on topometric spaces which are both (metrically) Lipschitz and (topologically) continuous, using them in contexts where, in classical topology, ordinary continuous functions are used.
Yaacov, Itaï Ben
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On the class of continuous images of non-commutative Valdivia compacta
, 2016 We investigate the class of continuous images of non-commutative Valdivia compact spaces, in particular its subclass of weakly non-commutative Cor- son countably compact spaces.
Somaglia, Jacopo
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