文献类型： 会议论文

第一作者： Qimei Xiao

作者： Qimei Xiao ¹ ;

作者机构： 1.Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road and Traffic Safety, (Changsha University of Science and Technology), Ministry of Education, Hunan, 410004, China

关键词： Lower approximations;Semigroup;Set-valued homomorphism;Set-valued mapping;Upper approximations

会议名称： IEEE International Conference on Computer Science and Automation Engineering

主办单位：

页码： 391-394

摘要： In this paper, we introduce the concept of (strong) set-valued homomorphism of a lattice which is a generalization of ordinary lattice homomorphism. We constructed generalized lower and upper approximation operators, by means of a set-valued mapping, which is a generalization of the notion of lower and upper approximations of a lattice, and related properties are investigated.

分类号： TP3