关于Ore-(1)型图中的Hamilton圈
Hamilton Cycles in the Graphs of Ore-Type-(1)
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摘要: 1982年Win证明了:2n阶Ore-(1)型图G有边不交的一个Hamilton圈和一个1-因子。本文证明了:在几乎与Win定理的条件相同的情况下,Ore-(1)型图有边不交的两个Hamilton圈和一个1-因子。Abstract: It was proved by S. Win in 1982 that if the sum of the degree of nonadjacent vertices of a simple graph G of order 2n is at least 2n + 1, then G has a Hamilton cycle and a 1-factor which are edge-disjoint. In this paper, it is proved that, under almost the same condition as Win's theorem, G has at least two Hamilton cycles and a 1-factor which are edge-disjoint.