ROUGH CUBIC PYTHAGOREAN FUZZY SETS IN SEMIGROUP

ROUGH CUBIC PYTHAGOREAN FUZZY SETS IN SEMIGROUP

V. Chinnadurai, A. Arulselvam

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Abstract

In this paper, we intend the concept of rough cubic Pythagorean fuzzy ideals in the semigroup. By using this notion, we discuss lower approximation and upper ap- proximation of cubic Pythagorean fuzzy left (right) ideals, bi-ideals, interior ideals, and study some of their related properties in detail.

Keywords

Rough set, Pythagorean fuzzy set, cubic Pythagorean fuzzy set, Rough cubic pythagorean fuzzy ideals.