二元函数S-粗集及其关系定理

二元函数S-粗集及其关系定理

吕昆，王磊

Twovariables function S-rough set and its relation theorem

LYU Kun, WANG Lei

J4 . 2014, (1): 102 -105 . DOI: 10.3976/j.issn.1002-4026.2014.01.018