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S—边界、S—内部与S—闭包 被引量:6
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作者 郭云霞 孟广武 《聊城大学学报(自然科学版)》 1997年第1期1-5,共5页
在拓扑空间中用半开集定义了集合的S—边界,详尽地研究了它与S—内部及S-闭包间的关系;给出了S—闭包的具体构造;讨论了开子空间中S—闭包、S—内部及S—边界算子的表现;指出了文[7]中的一个错误,并作了相应的修正.
关键词 拓扑学 半开集 s—邻域 s—边界 s—闭包 s—内部
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The Hiding Characteristic of F-interior Hiding Image and Its Applications
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作者 邱育锋 任雪芳 陈保会 《Journal of Donghua University(English Edition)》 EI CAS 2010年第2期237-241,共5页
By using function one direction S-rough sets,the concept of F-interior hiding image is presented; the theorem of F-interior hiding and the recognition criteria of interior hiding are proposed; and the applications of ... By using function one direction S-rough sets,the concept of F-interior hiding image is presented; the theorem of F-interior hiding and the recognition criteria of interior hiding are proposed; and the applications of F-interior hiding image are given. F-interior hiding image is a new application area of function S-rough sets,and function S-rough sets is a new theory and new tools for iconology research. 展开更多
关键词 function one direction s-rough sets F-interior hiding image interior hiding theorem interior hiding recognition application
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