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On the Factorizations of (mg, mf)-graph

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On the Factorizations of (mg, mf)-graph

李建湘

【期刊名称】《东北数学:英文版》 【年(卷),期】2004(020)004

【摘要】Let G be an(mg,mf)-graph,where g and f are integer-valued functions defined ov V(G)and such that 0≤g(x)≤f(x)for each x∈V(G).It is proved that (1)If z≠φ,both g and f may be not even,G has a (g,f)-factorization,where

Z={x∈V(G):mf(x)-dG(x)≤t(x)or

dG(x)-

mg(x)≤t(x),t(x)=f(x)-g(x)>0}.(2)Let G be an m-regular graph with 2n vertices,m≥n,If(P1,P2,…,Pr)is a partition of m,P1≡m(mod 2),Pi≡0(mod 2),i-2,…,r,then the edge set E(G)of G can be parted into r parts E1,E2,…,Er of E(G)such that G[Ei]is a Pi-factor of G. 【总页数】6页(P.435-440)

【关键词】(mg,mf)-图;因数分解;有限简单图;整值函数 【作者】李建湘 【

DepartmentofMathematics,HunanUniversityofScienceandTechnology,Xiangtan,Hunan,411201 【正文语种】英文 【中图分类】O157.5 【相关文献】

1.(g,f)-FACTORS WITH SPECIAL PROPERTIES IN BIPARTITE (mg,mf)-

On the Factorizations of (mg, mf)-graph

OntheFactorizationsof(mg,mf)-graph李建湘【期刊名称】《东北数学:英文版》【年(卷),期】2004(020)004【摘要】LetGbean(mg,mf)-graph,wheregandfareinteger-valuedfunctionsdefinedovV(G)
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