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Displaying 21 – 34 of 34

Some properties of g- and P-spaces

Kalamidas, N. (1999)

Serdica Mathematical Journal

A γ-space with a strictly positive measure is separable. An example of a non-separable γ−space with c.c.c. is given. A P−space with c.c.c. is countable and discrete.

Some properties related to [a,b]-compactness

J. Vaughan (1975)

Fundamenta Mathematicae

Some results on expansions for normal and completely normal spaces.

Mary Powderly (1974)

Journal für die reine und angewandte Mathematik

Some results on inverse spectra. I.

Mihail G. Tkachenko (1981)

Commentationes Mathematicae Universitatis Carolinae

Some results on inverse spectra. II.

Mihail G. Tkachenko (1981)

Commentationes Mathematicae Universitatis Carolinae

Some topological consequences of the Product Measure Extension Axiom

Heikki Junnila (1983)

Fundamenta Mathematicae

Some types of points in $N^{*}$

Gryzlov, A. (1984)

Proceedings of the 12th Winter School on Abstract Analysis

Spaces in which a bound on cardinality implies discreteness

D. L. Grant, I. L. Reilly (1990)

Matematički Vesnik

Spaces with large star cardinal number

Yan-Kui Song (2012)

Commentationes Mathematicae Universitatis Carolinae

In this paper, we prove the following statements: (1) For any cardinal $κ$ , there exists a Tychonoff star-Lindelöf space $X$ such that $a (X) \geq κ$ . (2) There is a Tychonoff discretely star-Lindelöf space $X$ such that $a a (X)$ does not exist. (3) For any cardinal $κ$ , there exists a Tychonoff pseudocompact $σ$ -starcompact space $X$ such that $st - l (X) \geq κ$ .

Spaces with zero set bases

Michael L. Wage (1977)

Commentationes Mathematicae Universitatis Carolinae

Special almost P-spaces

Alessandro Fedeli (1997)

Commentationes Mathematicae Universitatis Carolinae

Motivated by some examples, we introduce the concept of special almost P-space and show, using the reflection principle, that for every space $X$ of this kind the inequality “ $| X | \leq ψ_{c} {(X)}^{t (X)}$ " holds.

Displaying 21 – 34 of 34

Some properties of g- and P-spaces

Some properties related to [a,b]-compactness

Some results on expansions for normal and completely normal spaces.

Some results on inverse spectra. I.

Some results on inverse spectra. II.

Some topological consequences of the Product Measure Extension Axiom

Some types of points in $N^{*}$

Spaces in which a bound on cardinality implies discreteness

Spaces with large star cardinal number

Spaces with zero set bases

Special almost P-spaces

Strong decomposability of ultrafilters on cardinals with countable cofinality

Strongly summable ultrafilters on N and small maximal subgroups of ßN.

Sum theorems for the tightness and $π$ -character in the class of compact spaces

Currently displaying 21 – 34 of 34