relative to vertices 中文意思是什麼
relative to vertices
解釋
以存在的點為基準-
In this paper, we first give some sufficient conditions for t in a tree t : theorem4. 1 : let d be a set of t, if the vertices of d are all hooks and each middle vertex of t relative to d has only one neighbor in d, then ji = y, ? theorem4. 2 : let d be a yrset of t, if the vertices of d are all hooks and the connected components of [ d ] : d1, d2, . . . ,
首先這篇文章給出了在樹中_ l與_ t相等的一些充分條件:定理4 . 1 :設d是樹t的_ t集合,若d中每點都是鉤子,且t關于d的每個中介點都只與[ d ]的一個連通分支相關聯,則_ l = _ t 。
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