EuDML | Browse

Items

All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Displaying 401 – 420 of 838

Some observations on filters with properties defined by open covers

Rodrigo Hernández-Gutiérrez, Paul J. Szeptycki (2015)

Commentationes Mathematicae Universitatis Carolinae

We study the relation between the Hurewicz and Menger properties of filters considered topologically as subspaces of $𝒫 (ω)$ with the Cantor set topology.

Some observations on local uniform boundedness principles

James D. Stein (1991)

Czechoslovak Mathematical Journal

Some observations on local uniform boundedness principles. II

James D. Stein (1993)

Czechoslovak Mathematical Journal

Some open questions in infinite-dimensional topology

Anderson, R. D. (1972)

General Topology and its Relations to Modern Analysis and Algebra

Some order theoretic characterizations of the 3-cell

E. D. Tymchatyn (1972)

Colloquium Mathematicae

Some partitions consisting of Jordan curves.

Kharazishvili, A. (1996)

Georgian Mathematical Journal

Some Point Set Properties of Merotopic Spaces and Their Cohomology Groups.

Gerhard Preuß (1983)

Monatshefte für Mathematik

Some problems and lines of investigation in general topology

Aleksander V. Arhangel'skii (1988)

Commentationes Mathematicae Universitatis Carolinae

Some problems concerning $C (X)$

Császár, Á. (1977)

General topology and its relations to modern analysis and algebra IV

Some problems concerning curves

A. Lelek (1971)

Colloquium Mathematicae

Some problems concerning stability of fixed points

Sam B. Nadler, Jr. (1973)

Colloquium Mathematicae

Some problems in set theoretical topology

П.С. Александров

Matematiceskij sbornik

Some problems of convergence in countably modulared spaces

Musielak, J., Waszak, A. (1977)

General topology and its relations to modern analysis and algebra IV

Some problems on normality of products of spaces

Morita, K. (1977)

General topology and its relations to modern analysis and algebra IV

Some problems on Suslin spaces and topological algebras

Jens Peter Reus Christensen (1979)

Colloquium Mathematicae

Some product theorems

Kent, D. C., Richardson, G. D. (1977)

General topology and its relations to modern analysis and algebra IV

Some productive classes of maps which arc related to confluent maps

Kazuhiro Kawamura (1991)

Fundamenta Mathematicae

Some properly critical subsets of Euclidean spaces.

Pintea, Cornel (2010)

Balkan Journal of Geometry and its Applications (BJGA)

Some properties of algebras of real-valued measurable functions

Ali Akbar Estaji, Ahmad Mahmoudi Darghadam (2023)

Archivum Mathematicum

Let $M (X, 𝒜)$ ( $M^{*} (X, 𝒜)$ ) be the $f$ -ring of all (bounded) real-measurable functions on a $T$ -measurable space $(X, 𝒜)$ , let $M_{K} (X, 𝒜)$ be the family of all $f \in M (X, 𝒜)$ such that $coz (f)$ is compact, and let $M_{\infty} (X, 𝒜)$ be all $f \in M (X, 𝒜)$ that ${x \in X : | f (x) | \geq \frac{1}{n}}$ is compact for any $n \in ℕ$ . We introduce realcompact subrings of $M (X, 𝒜)$ , we show that $M^{*} (X, 𝒜)$ is a realcompact subring of $M (X, 𝒜)$ , and also $M (X, 𝒜)$ is a realcompact if and only if $(X, 𝒜)$ is a compact measurable space. For every nonzero real Riesz map $ϕ : M (X, 𝒜) \to ℝ$ , we prove that there is an element $x_{0} \in X$ such that $ϕ (f) = f (x_{0})$ for every $f \in M (X, 𝒜)$ if $(X, 𝒜)$ is a compact measurable space. We confirm...

Some properties of almost continuous multifunctions

V. Popa (1983)

Matematički Vesnik

Currently displaying 401 – 420 of 838

Previous Page 21 Next