Results 51 to 60 of about 94 (92)

A note on some applications of semi‐open sets

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 21, Issue 1, Page 205-207, 1998., 1996
The object of the present paper is to study the well known notions of semi‐closure, semiinterior, semi‐frontier and semi‐exterior of a set using the concept of semi‐open sets. A semi‐isolated point of a set is also defined and studied.
T. M. Nour
wiley   +1 more source

Quasiorders, principal topologies, and partially ordered partitions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 21, Issue 2, Page 221-234, 1998., 1997
The quasiorders on a set X are equivalent to the topologies on X which are closed under arbitrary intersections. We consider the quaisorders on X to be partial orders on the blocks of a partition of X and use this approach to survey some fundamental results on the lattice of quasiorders on X.
Thomas A. Richmond
wiley   +1 more source

Local compactness in approach spaces I

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 21, Issue 3, Page 429-438, 1998., 1998
This paper introduces some definitions of a concept of local compactness in approach spaces. The basic relationships between these concepts is studied, and measures of local compactness are defined.
R. Lowen, C. Verbeeck
wiley   +1 more source

Continuous functions on bigeneralized topological spaces, Int [PDF]

open access: yes, 2020
The purpose of this paper is to introduce the notions of (µ, µ ) (m,n) -continuous, almost (µ, µ ) (m,n) -continuous and weakly (µ, µ ) (m,n) -continuous functions on bigeneralized topological spaces. Basic properties, characterizations and relationships
Chokchai Viriyapong   +2 more
core  

Generalized totally disconnectedness

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 18, Issue 3, Page 485-488, 1995., 1994
In this paper totally disconnectedness is generalized to maximal disconnectedness, which is investigated, and additional properties of totally disconnectedncss and 0‐dimensional are given.
Charles Dorsett
wiley   +1 more source

On Pre Generalızed Pre Regular Weakly Closed Sets in Topologıcal Spaces [PDF]

open access: yes, 2020
In this paper a new class of sets called pre generalized pre regular weakly closed (briefly pgprw-closed) sets in topological spaces is introduced and studied. A subset A of a topological space (X, τሻ is called pgprw-closed if U contains pre closure of A

core  

Cech Closure Space in Structural Configuration of Proteins

open access: yes, 2009
The generalised structural arrangements of various bimolecule such as carbohydrates, proteins etc are based on the rules ofČech closure operator. In this paper we discuss the relationship betweenČech closure space and structural configuration of proteins.
K Chandrasekhara Rao   +3 more
core  

On Closure Operators, the Reals, and choice

open access: yes, 2004
Dedicated to our friend Guillaume Brümmer on the occasion of his 70th birthday.Abstract unavailable at this time...Mathematics Subject Classification (2000): 03E25, 54A05, 54D50, 54D55.Key words: Axiom of countable choice, closure operator, sequential ...
Giuli, Eraldo, Herrlich, Horst
core  

Separation Axioms via α^m-Kernel Set associated with α^m-Closed Set

open access: yes, 2015
In this paper, we introduce a new class of sets called -kernel set and study their basic properties in topological spaces.
Imran, Qays Hatem
core  

© Hindawi Publishing Corp. QUANTIFICATION OF TOPOLOGICAL CONCEPTS USING IDEALS

open access: yes, 2000
. We introduce certain ideals of real-valued functions as a natural generalization of filters. We show that these ideals establish a canonical framework for the quantification of topological concepts, such as closedness, adherence, and compactness, in ...
Robert Lowen, Bart Windels
core  

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