Supermagic Coverings of Some Simple Graphs

Supermagic Coverings of Some Simple Graphs
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DOI:
10.5281/zenodo.9229
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发表时间:
2011-05
期刊:
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通讯作者:
P. Jeyanthi;P. Selvagopal
P. Jeyanthi;P. Selvagopal
中科院分区:
其他
文献类型:
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作者:
P. Jeyanthi;P. Selvagopal

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简单图G =(V,E)有H -覆盖,如果E中的每条边都属于G的一个与H同构的子图。我们称G是Smarandachely对{ s,l } H -幻的,如果存在全标号f:V ∈ E → { 1,2,3,· · ·,|V| + |E|}使得G中存在同构于H的子图H1 =(V1,E1)和H2 =(V2,E2),则和与Pv ∈ V2 f(vPe ∈ E2 f(e)= 1.特别地,如果s = l,则这样的Smarandachely对{ s,l } H -幻称为H -幻,并且如果f(V)= { 1,2,· · ·,|V|},G被称为H -超魔。本文证明了同构于任意2-连通简单图H的有限图集的边合并是H -超魔的。
: A simple graph G = ( V, E ) admits an H -covering if every edge in E belongs to a subgraph of G isomorphic to H . We say that G is Smarandachely pair { s, l } H -magic if there is a total labeling f : V ∪ E → { 1 , 2 , 3 , · · · , | V | + | E |} such that there are subgraphs H 1 = ( V 1 , E 1 ) and H 2 = ( V 2 , E 2 ) of G isomorphic to H , the sum and P v ∈ V 2 f ( v P e ∈ E 2 f ( e ) = l . Particularly, if s = l , such a Smarandachely pair { s, l } H -magic is called H -magic and if f ( V ) = { 1 , 2 , · · · , | V |} , G is said to be a H -supermagic. In this paper we show that edge amalgamation of a finite collection of graphs isomorphic to any 2-connected simple graph H is H -supermagic.