半群降、升部分链的对称积

Symmetric Product of Lower and Upper Partial Chains of Semigroups

本文讨论了半群降、升部分链的对称积概念，着重考查了半群降、升部分链的极右对称积的基本性质及其与Ｇｒｅｅｎ（ｌ）关系的关系。

In this paper, the concept of symmetric product of lower and upper chains of semigroups has been discussed. Emphatically, the authors study the fundamental properties of the extremely right symmetric product of lower and upper chains of semigroups and its relationship with the Green(l) equiualences.