Miguel Caldas Cueva

035. G.$\Lambda_s$-sets and G.$V_s$-sets

Math. Journal: Mem. Fac. Sci. Kochi Univ. (Math), Japan, ISSN 0389-0252 , 21 (2000) , 21-30.
Authors: Caldas, M., and  Dontchev, J.

Abstract
In this paper we define the concepts of g.$\Lambda_s$-sets and g.$V_s$-sets and we use them in order to obtain new characterizations of semi-T_1, semi-R_0 and semi-T_1/2.