子集族在拟阵中有唯一独立P—横贯的条件

The Collection of Subsets Has Only One Independent P—Transversal Condition in Matroid

E是有限子集 ,(E ,F)是拟阵 ,U ={Ai:i∈I}I={ 1,2… ,n} ,本文在文献 [1]的基础上加以推广 。

Let E be a finite set,and(E,F)is matroid;U=｛A:i∈I｝,and I=｛1,2…n｝. On the base of Document[1],this paper popularizes it,and gives a sufficient and necessary condition that U has only one independent P——transversal in some particular condition.