在普通关系中,文献中存在众多扩张定理,可以把一个二元关系扩张成一个完全关系。相比之下,模糊情况下关系扩张的研究很少。文章研究了一个模糊关系的完全扩张问题,主要结果为:一个自反的、*-反对称的、*-传递的模糊关系可以扩张成为一个完全的、自反的、*-反对称的、*-传递的模糊关系,即任何一个偏序都可以扩张成一个线性序。
There exist a number of extension theorems for crisp relations in the literature, in which a relation is extended to a complete relation. On the contrary, there is little research on the extension issue of fuzzy relations. In this paper, we deal with the complete extension of a fuzzy relation and obtain the following main conclusion. Every re- flexive, * -antisymmetric and * -transitive fuzzy relation can be extended to a complete reflexive, * -antisymmetric and * -transitive fuzzy relation, namely, every partial order can be extended to a linear order.