Department of Mathematics, Thiruvaliuvar College, Papanasam -627425, Tirunelveli District, Tamil Nadu, India. Email: mmmurugalingam@yahoo.com
Online published on 22 February, 2013.
In this paper some equivalent characterizations of pre og*c1osed map and pre og* open map are introduced.
Pre og*c1osed map, Pre og* open map
