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pro vyhledávání: '"a-paracompact space"'
Autor:
Mohammed Yaseen, Raad Aziz Hussain
Publikováno v:
Iraqi Journal for Computer Science and Mathematics, Vol 3, Iss 2 (2022)
The main aim of this study is to create a new type of topology called “ -simple extension” and investigate its properties. We introduce a new definition for -open sets and consider this aspect as the basis of our main definition. Furthermore, we
Externí odkaz:
https://doaj.org/article/a0387c52d58046e184d19ae7d16265dd
Autor:
Farhadian, Reza
Publikováno v:
Acta Universitatis Danubius. Œconomica / Annals of Danubius University. Economics. 13(3):201-205
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=728693
Akademický článek
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Autor:
Nyikos, Peter, Pia̧tkiewicz, Leszek
Publikováno v:
Proceedings of the American Mathematical Society, 1996 Jan 01. 124(1), 303-314.
Externí odkaz:
https://www.jstor.org/stable/2161432
Publikováno v:
European Journal of Pure and Applied Mathematics. 14:351-357
A C-paracompact is a topological space X associated with a paracompact space Y and a bijective function f : X −→ Y satisfying that f A: A −→ f(A) is a homeomorphism for each compact subspace A ⊆ X. Furthermore, X is ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a9c328893382fa72bcb5f4f05804196
https://doi.org/10.29020/nybg.ejpam.v14i2.3941
https://doi.org/10.29020/nybg.ejpam.v14i2.3941
Autor:
Metin Uyanik, M. Ali Khan
Publikováno v:
Economic Theory. 71:799-840
We root this tribute to Nicholas Yannelis in Chapter II of his 1983 Rochester Ph.D. dissertation, and in his 1983 paper with Prabhakar: this work strengthens the lower semicontinuity assumption of Michael’s continuous selection theorem to open lowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::863cc22b2bd0976ea21005457aa9a6e1
https://doi.org/10.1007/s00199-021-01359-4
https://doi.org/10.1007/s00199-021-01359-4
Autor:
V. V. Tkachuk, Arkady Leiderman
Publikováno v:
Monatshefte für Mathematik. 197:493-503
Given a pseudocompact $$\varDelta $$ -space X, we establish that countable subsets of X must be scattered. This implies that pseudocompact $$\varDelta $$ -spaces of countable tightness are scattered. If a pseudocompact $$\varDelta $$ -space has the S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62441bb82e0ad2d638d6e1be82660edb
https://doi.org/10.1007/s00605-021-01628-3
https://doi.org/10.1007/s00605-021-01628-3
Autor:
B. K. Tyagi, Gaurav Kumar
Publikováno v:
Cubo, Vol 23, Iss 2, Pp 287-298 (2021)
Cubo (Temuco) v.23 n.2 2021
SciELO Chile
CONICYT Chile
instacron:CONICYT
Cubo (Temuco) v.23 n.2 2021
SciELO Chile
CONICYT Chile
instacron:CONICYT
A space \(X\) is called weakly strongly star-Menger space if for each sequence (\(\mathcal{U}_{n} : n \in \omega\)) of open covers of \(X\), there is a sequence \((F_n : n\in\omega)\) of finite subsets of \(X\) such that \(\overline{\bigcup_{n\in\ome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e508d721cc7700b3d4dff8aa29096be
http://revistas.ufro.cl/ojs/index.php/cubo/article/view/2717/2088
http://revistas.ufro.cl/ojs/index.php/cubo/article/view/2717/2088
Publikováno v:
WSEAS TRANSACTIONS ON MATHEMATICS. 20:353-360
The objective of the present work is to introduce the notion of α-nearly S-paracompact subset, which is closely related to α-nearly paracompact and αS-paracompact subsets. Moreover, we study the invariance under direct and inverse images of open,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11061784c13240e56c9f04b9442068be
https://doi.org/10.37394/23206.2021.20.36
https://doi.org/10.37394/23206.2021.20.36
Autor:
Dhananjoy Mandal, M. N. Mukherjee
Publikováno v:
Applied General Topology, Vol 15, Iss 1, Pp 25-32 (2014)
The present article deals with near metrizability, initiated in an earlier paper, with a new orientation and approach. The notions of nearly regular and uniform pseudo-bases are introduced and analogues of some results concerning metrizability and pa
Externí odkaz:
https://doaj.org/article/338f4fbcef39490fb99fc8c37ba850e1