Results 161 to 170 of about 14,602 (198)
Some of the next articles are maybe not open access.

On set star-Menger spaces

Quaestiones Mathematicae, 2023
In this paper, we prove that the product of a set star-Menger space with a compact space is a rectangular set star-Menger. We also  provide an example of Tychonoff pesudocompact set star-Menger space which is not set strongly starMenger. The above mentioned  results answer two questions of [14].
openaire   +2 more sources

On star-C-Menger spaces

Quaestiones Mathematicae, 2014
A space X is star-C-Menger if for each sequence (Un : n ∈ N) of open covers of X there exists a sequence (Ksub>n : n ∈ N) of countably compact subsets of X such that {St(Kn; Un) : n ∈ N} is an open cover of X. In this paper, we investigate the relationship between star-C-Menger spaces and related spaces, and study topological properties of star-< ...
Song, Yan-Kui, Yin, Zheng
openaire   +2 more sources

On set-star-K-Menger spaces

Publicationes Mathematicae Debrecen, 2022
Motivated by the Arhangel’skii [2] “s-Lindel¨of cardinal function” and Koˇcinac, Konca, and Singh [15] set-star covering properties, we introduce the setstar-C-Menger property. A space X is said to have the set-star-C-Menger property if for each nonempty subset A of X and each sequence (Un : n ∈ N) of families of open subsets of X such that A ⊂ ∪Un for
openaire   +2 more sources

Almost Menger Property in Bitopological Spaces

Ukrainian Mathematical Journal, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Özçağ, S., Eysen, A. E.
openaire   +2 more sources

A new contraction principle in menger spaces

Acta Mathematica Sinica, English Series, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Choudhury, Binayak S., Das, Krishnapada
openaire   +2 more sources

Fixed point results for cyclic contractions in Menger PM-spaces and generalized Menger PM-spaces

Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wu, Zhaoqi, Zhu, Chuanxi, Yuan, Chenggui
openaire   +1 more source

Star-Menger and related spaces

Publicationes Mathematicae Debrecen, 1999
Summary: The author introduces and studies some notions related to the classical concepts of being a Menger space or a Rothenberger space.
openaire   +1 more source

Menger-Betweenness in α-Simple Spaces

1983
Let (S,d,G;α) be an α-simpie space with α > 1, and let B(p,r) be the set of all points q in S which are Menger-between p and r, together with p and r. In this paper, we obtain best possible upper and lower bounds for B(p,r). Furthermore, we show that if (S, ∥ · ∥) is a normed linear space and d(p,q) = ∥p − q∥, then B(p,r) is convex and p, r are on the ...
C. Alsina, B. Schweizer
openaire   +1 more source

UNIFORM MENGER SPACE

Herald of Institute Mathematics of the National Academy of Sciences of the Kyrgyz Republic, 2021
openaire   +1 more source

On probabilistic -contractions on Menger spaces

Nonlinear Analysis: Theory, Methods & Applications, 2010
Abstract Recently, Ciric [Lj.B. Ciric, Solving the Banach fixed point principle for nonlinear contractions in probabilistic metric spaces, Nonlinear Anal. 72 (2010) 2009–2018] obtained a fixed point theorem with the intention to get a probabilistic version of the Boyd–Wong theorem [D.W. Boyd, J.S.W. Wong, On nonlinear contractions, Proc. Amer.
openaire   +1 more source

Home - About - Disclaimer - Privacy