JP Journal of Algebra, Number Theory and Applications
Volume 42, Issue 1, Pages 77 - 83
(April 2019) http://dx.doi.org/10.17654/NT042010077 |
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THE LEFT (RIGHT) ROUGH APPROXIMATIONS IN A GROUP
Nurettin Bağırmaz and Hatice Taşbozan
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Abstract: Rough set theory proposes a new mathematical approach to model vagueness. In this paper, we introduce a new definition for rough approximations with respect to the subgroups of a group, which is called the left (right) lower and upper approximations. In fact, we prove that this definition is a generalization of definition in [5]. Then we give some properties of these rough approximations. |
Keywords and phrases: rough sets, rough groups, left (right) lower approximation, left (right) upper approximation.
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