研究给定最大度的树在移接变形下的代数连通度的变化.这些结果可以用来刻画给定最大度和顶点个数的树中具有最小代数连通度的极图,并且给出了该极图的代数连通度的一个下界.
This paper investigated how the algebraic connectivity of trees changes under some graph perturbations.Then these results were used to characterize the extremal tree which has the smallest algebraic connectivity in the set of trees given the number of vertex and the maximum degree.