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《Journal of Guangxi Academy of Sciences》 2004-03
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A Supplement of the Complexity of Graph Isomorphism Test

Luo Shifeng (Coll.of Comp.& Info.Engi.,Guangxi Univ.,Nanning,Guangxi,530004,China)  
The vertex with maximum degree and its incidence edges in the graph G are deleted The remaning subgraphs follow in the same way until the last subgraph empty If degrees of the deleted vertexes x\-1,x\-2,…,x\-l are P\-1,P\-2,…,P\-l in order The series P\-1,P\-2,…,P\-l is called the degree series of the graph G The set consists of the degrees of other ends of the incidance edges of x\-i(1≤i≤l) in graph G,is called the incidence degree set of x\-i The complexity of graph isomorphism test is proved to be polynomial by calculating and comparing the degree series,the degrees of the deleted vertexes and their incidence degree set
【CateGory Index】: O157.5
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