secondary minimum

Submaxinal sub of and subminimum sub of the sub structure are introduced,their proparties are given,and the decomposition theorems are abtained as follows: every sub of sub structure can be decomposed as intersection(union) of some submaxinal(subminimum) subs.

在子结构中引入了次极大子和次极小子的概念,讨论了它们的性质,并得到子的如下分解定理:子结构中的任一子都可表示为一些次极大(小)子的交(并),特别地,在满足子降链条件的子结构中,每个子都可表示为有限个次极大子的交。

Minimal ideal and sub-minimal ideal of BCK-algebras;

BCK-代数的极小理想与次极小理想

Submaximal ideal and subminimal ideal of semiring;

半环的次极大理想与次极小理想

In this paper,the concept of subminimal ideal of semiring is introduced.

提出了半环的次极小理想的概念,讨论了半环的次极小理想的基本性质,并得到了一些相关的结论。