Author/Authors :
Nasef, A.A. Department of Physics and Engineering Mathematics - Faculty of Engineering, Egypt , Azzam, A. A. Department of Mathematics - Faculty of Science - Assuit University, New Valley, Egypt.
Abstract :
In this paper, we dene and study two operators s and s with grill. Charac-
terization and basic properties of these operators are obtained. Also, we generalize a grill
topological spaces via topology s induced from operators s and s.
