1)  splitting
可收缩
2)  contractible edge
可收缩边
1.
The existence theorem of contractible edges in h-connected graphs;
h-连通图中可收缩边的存在定理
2.
The contractible edges of the longest cycle in some 5-connected graphs;
某些5-连通图中最长圈上的可收缩边
3.
Kriesell conjectured that every K, connected graph has a k-contractible edge if the degree sum of any two adjacent vertices is at least 2 5k/4- 1.
Kriesell(2001年)猜想:如果k连通图中任意两个相邻顶点的度的和至少是25k/4-1,则图中有k-可收缩边。
3)  contractible cycle
可收缩圈
1.
It is Thomassen who firstly asked if there is a polynomial bounded algorithm for finding a shortest contractible cycle,a shortest separating cycle and a shortest two sided cycle in an embedded graphs.
对于一般曲面上嵌入图,只要它的面宽度充分大,那么同样有多项式算法发现最短可收缩圈。
4)  collapsible,contractible
可收缩的
5)  strong unretractive(S unretractive)
强不可收缩（S-不可收缩
6)  shrink film
可收缩薄膜
参考词条
补充资料：Lie代数的收缩


Lie代数的收缩
contraction of a Lie algebra

　　lie代数的收缩【阴加面皿Of a lie aigebm:c粉T拙a几re6p“瓜l Lie代数的形变(deformation)的逆运算.令g是一个有限维实Lie代数，{。态}是它关于一个取定的基e、，二、e。的结构常数集，A(O(0　　
说明：补充资料仅用于学习参考，请勿用于其它任何用途。