换言之，它有大的自同构群。
最后确定了W及其泛中心扩张的自同构群的结构。
Finally, the structures of the automorphism groups of W and its universal central extension are characterized.
一个图称为点传递图，如果它的全自同构群在它的顶点集合上作用传递。
Firstly, we obtain some equivalent characterization for Cayley graphs of completely simple semigroup which is vertex-transitive.
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