The lower and upper approximations in a hypergroup

被引：54
|
作者：
Leoreanu-Fotea, Violeta [1 ]
机构：
[1] AlI Cuza Univ, Fac Math, Iasi, Romania
来源：
INFORMATION SCIENCES | 2008年 / 178卷 / 18期
关键词：
rough set; hypergroup; invertible subhypergroup; closed subhypergroup; fuzzy set;
D O I：
10.1016/j.ins.2008.05.009
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a relationship between rough sets and hypergroup theory. We analyze the lower and upper approximations of a subset, with respect to an invertible subhypergroup and we consider some particular situations. Moreover, the notion of a rough subhypergroup is introduced. Finally, fuzzy rough subhypergroups are introduced and characterized. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码：3605 / 3615
页数：11
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