设度量空间(X,d),X不为空集.IS是集合X上的对称逆半群,令KIS={α∈IS|x,y∈dom(α),都有d(xα,yα)≥d(x,y)},显然KIS是IS的一个子半群,称为度量空间上的扩张对称逆半群.主要研究KIS中的Green关系.%Let(X,d) be a metric space[6],X ≠φ.IS[3]is the symmetric inverse semigroup on the set X,let KIS={α∈IS|x,y∈dom(α),都有d(xα,yα)≥d(x,y)},then it is easy to verify that KIS is a subsemigroup of IS.We call KIS as a distensible symmetric inverse semigroup on metric space.This paper describes the green rela-tions of KIS.
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