research centers


Search results: Found 3

Listing 1 - 3 of 3
Sort by

Article
Fibrewise Pairwise bi-Separation Axioms

Authors: L. A. Hussain --- Y. Y. Yousif
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2018 Volume: 00 Issue: 1 Pages: 157-165
Publisher: Al-Nahrain University جامعة النهرين

Loading...
Loading...
Abstract

The main idea of this research is to consider fibrewise pairwise versions of the more important separation axioms of ordinary bitopology named fibrewise pairwise bi-T_0 spaces, fibrewise pairwise bi -T_1 spaces, fibrewise pairwise bi-R_0 spaces, fibrewise pairwise bi-Hausdorff spaces, fibrewise pairwise functionally bi-Hausdorff spaces, fibrewise pairwise bi-regular spaces, fibrewise pairwise completely bi-regular spaces, fibrewise pairwise bi-normal spaces and fibrewise pairwise functionally bi-normal spaces. In addition we offer some results concerning it.2010 MSC: 55R70, 54C05,54C08,54C10, 54D10, 54D15.


Article
Filter Bases and j-ω-Perfect Mappings

Authors: G. S. Ashaea --- Y. Y. Yousif
Journal: Ibn Al-Haitham Journal For Pure And Applied Science مجلة ابن الهيثم للعلوم الصرفة والتطبيقية ISSN: 16094042 Year: 2019 Volume: 32 Issue: 3 Pages: 165-177
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

This paper consist some new generalizations of some definitions such: j-ω-closureconverge to a point, j-ω-closure directed toward a set, almost j-ω-converges to a set, almostj-ω-cluster point, a set j-ω-H-closed relative, j-ω-closure continuous mappings, j-ω-weaklycontinuous mappings, j-ω-compact mappings, j-ω-rigid a set, almost j-ω-closed mappings andj-ω-perfect mappings. Also, we prove several results concerning it, where j {, δ,, pre, b,}.


Article
IJ-w-Perfect Functions Between Bitopological Spaces
الدوال التامة من النمط-IJ-w بين الفضاءات التبولوجية الثنائية

Loading...
Loading...
Abstract

In this paper we introduce a lot of concepts in bitopological spaces which are ij-ω-converges to a subset, ij-ω-directed toward a set, ij-w-closed functions, ij-w-rigid set, ij-w-continuous functions and the main concept in this paper is ij--perfect functions between bitopological spaces. Several theorems and characterizations concerning these concepts are studied.

Keywords

Listing 1 - 3 of 3
Sort by
Narrow your search

Resource type

article (3)


Language

English (2)


Year
From To Submit

2019 (1)

2018 (1)

2010 (1)