On rough set and fuzzy sublattice

被引：34
作者：
Estaji, Ali Akbar [1 ]
Khodaii, Somayeh [1 ]
Bahrami, Solmaz [1 ]
机构：
[1] Sabzevar Tarbiat Moallem Univ, Dept Math, Sabzevar, Iran
来源：
INFORMATION SCIENCES | 2011年 / 181卷 / 18期
关键词：
Rough set; Upper and lower approximations; Lattice; Fuzzy sublattice; Fuzzy prime ideal; UPPER APPROXIMATIONS; IDEALS;
D O I：
10.1016/j.ins.2011.04.043
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Let L be a lattice with the least element 0 and the greatest element 1 and let theta be a full congruence relation on L. In this paper, the notion of theta-upper and theta-lower approximations of a fuzzy subset of L is introduced and some important properties will be studied. (C) 2011 Elsevier Inc. All rights reserved.
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收藏
页码：3981 / 3994
页数：14
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