右对合广群中的上粗子广群与上粗理想
Right involution groupoid ′ s upper rough sub-groupoid and upper rough ideal
这些结果将粗糙集代数性质的研究扩展到右对合广群这个代数系统中。
Through these studies , the study of rough set ′ s algebraic properties are spreaded to right involution groupoid .
右广