Approximations of some near open sets in ideal topological spaces

被引：0
|
作者：
A. S. Nawar
机构：
[1] Menoufia University,Department of Mathematics and Computer Science, Faculty of Science
来源：
Journal of the Egyptian Mathematical Society | / 28卷 / 1期
关键词：
-ideal approximation spaces; -ideal open sets; Accuracy measure;
D O I：
10.1186/s42787-019-0067-0
中图分类号：
学科分类号：
摘要：
In this paper, we introduce the concepts of j-ideal lower and j-ideal upper approximations as a generalization of approximation by Pawlak by using j-ideal open sets where j ∈ {α, S, P, γ, β, ⋀β}. Some of their basic properties with the aid of examples are proven. Furthermore, we study the relationships between these approximations to get the best of them.
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