Results 1 to 10 of about 94 (92)

A DECOMPOSITION OF CONTINUITY ON F*– SPACES AND MAPPINGS ON SA*– SPACES

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
: An ideal topological space (X,Ï„,I) is said to be an F* – space if A=Cl*(A) for every open set A ⊂ X. In this paper, a decomposition of continuity on F* – spaces is introduced.
A. ACIKGOZ
doaj   +1 more source

Degrees of (L, M)-fuzzy bornologies

open access: yesOpen Mathematics
This article is devoted to present the degree to which a mapping defined from LX{L}^{X} to M,M, which is an (L,M)\left(L,M)-fuzzy bornology in the sense of Liang et al.
Çetkin Vildan
doaj   +1 more source

Semi-Hurewicz-Type properties in ditopological texture spaces

open access: yesOpen Mathematics, 2018
In this paper we will define and discuss semi-Hurewicz type covering properties in ditopological texture spaces. We consider the behaviour of semi-Hurewicz and co-semi-Hurewicz selection properties under direlation and difunction between ditopological ...
Ullah Hafiz, Khan Moiz ud Din
doaj   +1 more source

Path-induced closure operators on graphs for defining digital Jordan surfaces

open access: yesOpen Mathematics, 2019
Given a simple graph with the vertex set X, we discuss a closure operator on X induced by a set of paths with identical lengths in the graph. We introduce a certain set of paths of the same length in the 2-adjacency graph on the digital line ℤ and ...
Šlapal Josef
doaj   +1 more source

-Generalized b- Closed Sets in Topological Spaces

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
     In this paper we introduce a new class of sets called -generalized b- closed (briefly gb closed) sets. We study some of its basic properties. This class of sets is strictly placed between the class of gp- closed sets and the class of gsp- closed ...
A.K. Al-Obiadi
doaj  

Galois connections between sets of paths and closure operators in simple graphs

open access: yesOpen Mathematics, 2018
For every positive integer n,we introduce and discuss an isotone Galois connection between the sets of paths of lengths n in a simple graph and the closure operators on the (vertex set of the) graph.
Šlapal Josef
doaj   +1 more source

Topological Up-Algebras

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2019
In this paper, we introduce the notion of topological UP-algebras and several types of subsets of topological UP-algebras, and prove the generalization of these subsets.
Satirad Akarachai, Iampan Aiyared
doaj   +1 more source

Some further results on the stability of Ky Fan's points. [PDF]

open access: yesJ Inequal Appl, 2017
Xiang S, He J, Liu C, Jia W, Yang Y.
europepmc   +1 more source

Home - About - Disclaimer - Privacy