A NOTE ON SOME PROPERTIES OF DOUBLE
TOPOLOGICAL OPERATIONS AND NEARLY OPEN SETS
Sahem Al-Tarawneh
Department of Mathematics
Al Hussein Bin Talal University
Maan, JORDAN
The aim of this paper is to study some topological double operations {(Aο)^ο,(Aο)E,(Aο)b,(AE)ο,...} and to obtain the interrelationships between these operations. We also study and investigate new properties of nearly open sets and introduce some conditions to strengthen semi pre-open (pre-closed) sets to be open (closed).
Abstract.
AMS Subject classification: 54-00, 54A05, 54A10
Keywords and phrases: E(Pο)s, E(PE)s, E(Pb)s, double operations, clopen sets


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DOI: 10.12732/ijam.v26i1.4

Volume: 26
Issue: 1
Year: 2013