Results 1 to 10 of about 97 (86)

Strongly τ-pseudocompact spaces

open access: yesTopology and Its Applications, 1998
All hypothesized spaces are Tychonoff, and \(\tau\) is an infinite cardinal number. The author introduces the concept of a strongly \(\tau\)-pseudocompact space, studies its relation to initial \(\tau\)-compactness, and extends results of [\textit{J. F. Kennison}, Trans. Am. Math. Soc. 104, 436-442 (1962; Zbl 0111.35004)] and others.
A V Arhangel'Skii
exaly   +5 more sources

Selectively Pseudocompact Groups without Infinite Separable Pseudocompact Subsets

open access: yesAxioms, 2018
We give a “naive” (i.e., using no additional set-theoretic assumptions beyond ZFC, the Zermelo-Fraenkel axioms of set theory augmented by the Axiom of Choice) example of a Boolean topological group G without infinite separable pseudocompact subsets ...
Dmitri Shakhmatov, Víctor Hugo Yañez
doaj   +3 more sources

Pseudocompact Mal'tsev spaces

open access: yesTopology and Its Applications, 1998
The paper is full of interesting results on pseudocompact spaces. The main result generalizes Comfort-Ross theorems [\textit{W. W. Comfort} and \textit{K. A. Ross}, Pac. J. Math. 16, 483-496 (1966; Zbl 0214.28502)]: (1) Every product of pseudocompact Mal'tsev spaces is pseudocompact; (2) If \(X\) is a pseudocompact Mal'tsev space, then every Mal'tsev ...
Reznichenko, E.A., Uspenskij, V.V.
exaly   +2 more sources

Spaces whose Pseudocompact Subspaces are Closed Subsets

open access: yesApplied General Topology, 2004
Every first countable pseudocompact Tychonoff space X has the property that every pseudocompact subspace of X is a closed subset of X (denoted herein by “FCC”).
Alan Dow   +3 more
doaj   +5 more sources

A connected pseudocompact space

open access: yesTopology and Its Applications, 1994
In this article a space \(X\) is called pseudocompact if every discrete collection of open subsets of \(X\) is finite. Recall that a set \(A\) is said to be conditionally compact or relatively countably compact in a space \(X\) if every infinite subset of \(A\) has a limit point in \(X\). At the 1990 Summer Conference in General Topology at Long Island
exaly   +3 more sources

A NOTE ON Cc(X) VIA A TOPOLOGICAL RING [PDF]

open access: yesJournal of Algebraic Systems, 2023
Let $C_c(X)$ (resp., $C_c^*(X)$) denote the functionallycountable subalgebra of $C(X)$ (resp., $C^*(X)$),consisting of all functions (resp., bounded functions) with countable image.$C_c(X)$ (resp., $C_c^*(X)$) as a topological ring via $m_c$-topology ...
R. Mohamadian   +3 more
doaj   +1 more source

Maximal pseudocompact spaces and the Preiss-Simon property

open access: yesOpen Mathematics, 2014
Alas Ofelia   +2 more
doaj   +2 more sources

m-TOPOLOGY ON THE RING OF REAL-MEASURABLE FUNCTIONS [PDF]

open access: yesJournal of Algebraic Systems, 2021
In this article we consider the $m$-topology on \linebreak $M(X,\mathscr{A})$, the ring of all real measurable functions on a measurable space $(X, \mathscr{A})$, and we denote it by $M_m(X,\mathscr{A})$.
H. Yousefpour   +3 more
doaj   +1 more source

Extension of functions defined on products of pseudocompact spaces and continuity of the inverse in pseudocompact groups

open access: yesTopology and Its Applications, 1994
It is shown that if \(X,Y\) are Tychonoff pseudocompact spaces, then every continuous real-valued function on \(X \times Y\) can be extended to a separately continuous function on \(\beta (X) \times \beta (Y)\). Using this result (which has its own interest the author proves that any Tychonoff pseudocompact group \(G\) with continuous multiplication is
exaly   +3 more sources

Ideal spaces

open access: yesApplied General Topology, 2021
Let C∞ (X) denote the family of real-valued continuous functions which vanish at infinity in the sense that {x ∈ X : |f(x)| ≥ 1/n} is compact in X for all n ∈ N. It is not in general true that C∞ (X) is an ideal of C(X).
Biswajit Mitra, Debojyoti Chowdhury
doaj   +1 more source

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