Asia Mathematika

An International Journal. ISSN: 2457-0834 (online)

Volume 3, Issue 2, August 2019, Pages: 19-25

Rough Approximations in Topological Vector Spaces

Shahad T.Almohammadi1* and Cenap Ozel12

1Department of Mathematics, (UJ) University of Jeddah, P.O. Box 80327, Jeddah 21589, KSA.
2Department of Mathematics, (KAU) King Abdulaziz University, P.O. Box 80203, Jeddah 21589, KSA.


In this article, we propose the lower and upper approximations in a topological vector space. Also we prove some algebraic and topological results of these approximations and give some implications of algebraic and set operations on these approximations.


Rough approximations, lower approximation, upper approximation, Vector Space, Topological Vector Space


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