Fuzzy幂群的基数定理

文［１］提出了幂群的概念，给出了幂群中各元素是等势的基数定理，文［２］提出了Ｆｕｚｚｙ幂群的概念，但没研究其中各元素的基数问题，本文深入研究这一问题，得到了由Ｄ．Ｄｕｂｏｉｓ等在文［３］中提出的和由李洪兴等在文［４］中提出的两种Ｆｕｚｚｙ集基数形式下的Ｆｕｚｚｙ幂群的基数定理，并给出了Ｆｕｚｚｙ幂群中与基数有关的若干结果。

基于模糊超群构建的Engel群及其性质研究

通过构造满足Engel递减条件的模糊超群(H,。)上最小的等价关系■^(*),使得模糊超群关于等价关系构建的商群(等价类的集合)H/■^(*)是一个Engel群,并通过等价关系的强正则性来刻画该Engel群,最后引入模糊超群的?-部分的概念,确定等价关系?是可传递的充要条件.

Lower and Upper Fuzzy Topological Subhypergroups

This paper provides a new connection between algebraic hyperstructures and fuzzy sets. More specifically, using both properties of fuzzy topological spaces and those of fuzzy subhypergroups, we define the notions of lower （upper） fuzzy topological subhypergroups of a hypergroup endowed with a fuzzy topology. Some results concerning the image and the inverse image of a lower （upper） topological subhypergroup under a very good homomorphism of hypergroups （endowed with fuzzy topologies） are pointed out.

(∈_γ,∈_γ∨q_δ)-模糊n-序超群

把模糊集理论应用到n-序超群,在交换n-序超群中引入了(∈γ,∈γ∨qδ)模糊n-序子超群和(∈γ,∈γ∨qδ)模糊n-序可逆子超群的概念,并研究了其性质。

On Fuzzy Preordered Structures and (Fuzzy) Hyperstructures

This article presents a connection between fuzzy preordered structures and hyperstructures. Firstly, we introduce the notion of fuzzy preordered semigroup and then, we construct a semihypergroup associated with it, giving some properties of the associated hyperstructure. Secondly, we define the notion of fuzzy preordered ring in order to construct a fuzzy hyperring.

(m,n)模糊超环

介绍(m,n)超环等一些相关概念,之后将(m,n)超环模糊化,给出(m,n)模糊超环的定义,初步探讨(m,n)模糊超环的结构和性质,分析(m,n)模糊超环在同态下的不变性。