scholarly journals More on Selective Covering Properties in Bitopological Spaces

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Ljubiša D. R. Kočinac ◽  
Selma Özçağ
Keyword(s):  
Covering Properties ◽  
Bitopological Spaces

In this study, we continue our investigation of selective covering properties in bitopological spaces. We discuss their behaviour under certain kinds of mappings. We also introduce selective versions of the ccc property and the star-ccc property in bitopological spaces and give few of their relations with other selective properties. Also, we consider preservation of selective covering properties of bitopological spaces under some known relations in bitopological context.

scholarly journals Games relating to weak covering properties in bitopological spaces

2020 ◽  
Vol 44 (6) ◽  
pp. 2297-2305
Author(s):  
Ali Emre EYSEN ◽  
Selma ÖZÇAĞ
Keyword(s):  
Covering Properties ◽  
Bitopological Spaces

scholarly journals Selection principles and covering properties in bitopological spaces

2020 ◽  
Vol 21 (1) ◽  
pp. 159
Author(s):  
Moiz ud Din Khan ◽  
Amani Sabah
Keyword(s):  
Covering Properties ◽  
Selection Principles ◽  
Bitopological Spaces

<p>Our main focus in this paper is to introduce and study various selection principles in bitopological spaces. In particular, Menger type, and Hurewicz type covering properties like: Almost p-Menger, star p-Menger, strongly star p-Menger, weakly p-Hurewicz, almost p-Hurewicz, star p-Hurewicz and strongly star p-Hurewicz spaces are defined and corresponding properties are investigated. Relations between some of these spaces are established.</p>

ON FULL COVERING PROPERTIES

1980 ◽  
Vol 6 (1) ◽  
pp. 77 ◽  
Author(s):  
Thomson
Keyword(s):  
Covering Properties

Operations and its applications on L-fuzzy bitopological spaces: Part I

1999 ◽  
Vol 106 (2) ◽  
pp. 255-274
Author(s):  
A. Kandil ◽  
A.S. Abd-Allah ◽  
A.A. Nouh
Keyword(s):  
Bitopological Spaces

scholarly journals Some Modifications of Pairwise Soft Sets and Some of Their Related Concepts

Mathematics ◽  
2021 ◽  
Vol 9 (15) ◽  
pp. 1781
Author(s):  
Samer Al Ghour
Keyword(s):  
Topological Space ◽  
Sufficient Conditions ◽  
Soft Sets ◽  
New Concepts ◽  
Bitopological Spaces ◽  
The Relationship ◽  
Soft Topological Space

In this paper, we first define soft u-open sets and soft s-open as two new classes of soft sets on soft bitopological spaces. We show that the class of soft p-open sets lies strictly between these classes, and we give several sufficient conditions for the equivalence between soft p-open sets and each of the soft u-open sets and soft s-open sets, respectively. In addition to these, we introduce the soft u-ω-open, soft p-ω-open, and soft s-ω-open sets as three new classes of soft sets in soft bitopological spaces, which contain soft u-open sets, soft p-open sets, and soft s-open sets, respectively. Via soft u-open sets, we define two notions of Lindelöfeness in SBTSs. We discuss the relationship between these two notions, and we characterize them via other types of soft sets. We define several types of soft local countability in soft bitopological spaces. We discuss relationships between them, and via some of them, we give two results related to the discrete soft topological space. According to our new concepts, the study deals with the correspondence between soft bitopological spaces and their generated bitopological spaces.

scholarly journals Generalized ψ∗-closed sets in bitopological spaces

2015 ◽  
Vol 23 (3) ◽  
pp. 527-534 ◽  
Author(s):  
H.M. Abu Donia ◽  
M.A. Abd Allah ◽  
A.S. Nawar
Keyword(s):  
Closed Sets ◽  
Bitopological Spaces

scholarly journals A Hofmann–Mislove theorem for bitopological spaces

2008 ◽  
Vol 76 (2) ◽  
pp. 161-174 ◽  
Author(s):  
Achim Jung ◽  
M. Andrew Moshier
Keyword(s):  
Bitopological Spaces

Combinatorics of Thin Posets: Application to Monotone Covering Properties

Order ◽  
2010 ◽  
Vol 28 (2) ◽  
pp. 173-179 ◽  
Author(s):  
Maddalena Bonanzinga ◽  
Mikhail Matveev
Keyword(s):  
Covering Properties

COVERING PROPERTIES OF SMALL VOLUME HYPERBOLIC 3-MANIFOLDS

1998 ◽  
Vol 07 (03) ◽  
pp. 381-392 ◽  
Author(s):  
ALEXANDER MEDNYKH ◽  
ANDREI VESNIN
Keyword(s):  
Small Volume ◽  
Whitehead Link ◽  
Covering Properties

Closed hyperbolic 3-manifolds obtained by Dehn surgeries on the Whitehead link yield interesting examples of manifolds of small volume. In the present paper these manifolds are described as 2-fold coverings of the 3-sphere branched over 3-bridge links. As a corollary, maximally symmetric [Formula: see text]-manifolds of small volume are obtained.

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