Results 21 to 30 of about 363 (203)

-Fuzzy Extremally Disconnected Ideal Topological Spaces [PDF]

open access: yesInternational Journal of Fuzzy Logic and Intelligent Systems, 2010
The notion of ★-Externally disconnected fuzzy ideal topological spaces is introduced and studied. Many characterizations of the space are obtained.
S. Ahmed Abd El-Baki, Yaser M. Saber
openaire   +1 more source

Continuous functions on extremally disconnected spaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1995
Using results and techniques due to Abramovich, Arenson and Kitover it is shown that each fixed-point set of a selfmap of a compact extremally disconnected space is a retract of that space, and that the retraction can be constructed from the particular selfmap itself.
openaire   +2 more sources

On Semicompact Sets and Associated Properties

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
We continue the study of semicompact sets in a topological space. Several properties, mapping properties of semicompact sets are studied. A special interest to 𝑆𝐶𝑆 spaces is given, where a space 𝑋 is 𝑆𝐶𝑆 if every subset of 𝑋 which is semicompact in 𝑋 is
Mohammad S. Sarsak
doaj   +1 more source

On Generalized Closed Sets and Generalized Pre-Closed Sets in Neutrosophic Topological Spaces

open access: yesMathematics, 2018
In this paper, the concept of generalized neutrosophic pre-closed sets and generalized neutrosophic pre-open sets are introduced. We also study relations and various properties between the other existing neutrosophic open and closed sets. In addition, we
Wadei Al-Omeri, Saeid Jafari
doaj   +1 more source

On rings of real valued clopen continuous functions

open access: yesApplied General Topology, 2018
Among variant kinds of strong continuity in the literature, the clopen continuity or cl-supercontinuity (i.e., inverse image of every open set is a union of clopen sets) is considered in this paper.
Susan Afrooz   +2 more
doaj   +1 more source

Countably I-Compact Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We introduce the class of countably I-compact spaces as a proper subclass of countably S-closed spaces. A topological space (X,T) is called countably I-compact if every countable cover of X by regular closed subsets contains a finite subfamily whose ...
Bassam Al-Nashef
doaj   +1 more source

Extremally Disconnected Spaces and Compactifications

open access: yesJournal of Advanced Studies in Topology, 2012
This paper deal with conditions on a topological space \(X\) to get its compactification \(K(X)\) an extremally disconnected space. The case of the Alexandroff compactification, \(T_0\)-compactification and Wallman compactification are studied.
Karim Belaid, Ebtesam Musaidy
openaire   +1 more source

rc-continuous functions and functions with rc-strongly closed graph

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
The family of regular closed subsets of a topological space is used to introduce two concepts concerning a function f from a space X to a space Y. The first of them is the notion of f being rc-continuous.
Bassam Al-Nashef
doaj   +1 more source

A NOTE ON EXTREMALLY DISCONNECTED SPACES [PDF]

open access: yes, 2020
In this paper we give several equivalent characterizations of extremally disconnected ...
Majid Mirmiran
core  

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

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