%0 Journal Article
%T Rough Sets and Subsets of a Topological Space<br>粗糙集与拓扑空间的子集
%A LI Jin-in
%A <br>李进金
%J 系统工程理论与实践
%D 2005
%I 
%X We introduce notions of interior and closure of a set about a subbase for a topological space, and obtain their basic properties ; In addition, we discuss the relations between rough sets and subsets of a topological space. These results can be considered as fundamental theory of rough sets.
%K topology
%K rough set
%K interior
%K closure<br>拓扑
%K 粗集
%K 内部
%K 闭包
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=962324E222C1AC1D&jid=1D057D9E7CAD6BEE9FA97306E08E48D3&aid=EE34F9A4BA0BBCEB&yid=2DD7160C83D0ACED&vid=C5154311167311FE&iid=DF92D298D3FF1E6E&sid=58F693790F887B3B&eid=B0EBA60720995721&journal_id=1000-6788&journal_name=系统工程理论与实践&referenced_num=7&reference_num=12