Roughness in modules by using the notion of reference points
نویسندگان
1 Department of Mathematics, Yazd University, Yazd, Iran.
2 Department of Mathematics, Yazd University, Yazd, Iran
doi
10.22111/ijfs.2013.1334چکیده
module over a ring is a general mathematical concept for many examples of mathematicalobjects that can be added to each other and multiplied by scalar numbers.In this paper, we consider a module over a ring as a universe and by using the notion of reference points, we provide local approximations for subsets of the universe.
