• ON SOME PROPERTIES OF ROUGH APPROXIMATIONS  OF SUBGROUPSVIA AN EQUIVALENCE RELATION

Y. MADHAVI REDDY*; E. KESHAVA REDDYAND; P. VENKAT RAMAN

• ON SOME PROPERTIES OF ROUGH APPROXIMATIONS OF SUBGROUPSVIA AN EQUIVALENCE RELATION

Y. MADHAVI REDDY*, E. KESHAVA REDDYAND, P. VENKAT RAMAN

Abstract

In 1982, Zdzislaw Pawlak introduced the theory of Rough sets to deal with the problems involving imperfect knowledge. This present research article studies some interesting properties of Rough approximations of subgroups via an equivalence relation. In this present work, a group structure is assigned to the universe set and a few results on the Rough approximations of subgroups of the universe set are established.

Keywords

Group, Subgroup, Co-set, Rough set, Upper Approximation, Lower Approximation, Information system, Equivalence relation.

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