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On a rainbow version of Dirac's theorem
Bulletin of the London Mathematical Society ( IF 0.9 ) Pub Date : 2020-05-19 , DOI: 10.1112/blms.12343
Felix Joos 1 , Jaehoon Kim 2
Affiliation  

For a collection G = { G 1 , , G s } of not necessarily distinct graphs on the same vertex set V , a graph H with vertices in V is a G ‐transversal if there exists a bijection ϕ : E ( H ) [ s ] such that e E ( G ϕ ( e ) ) for all e E ( H ) . We prove that for | V | = s 3 and δ ( G i ) s / 2 for each i [ s ] , there exists a G ‐transversal that is a Hamilton cycle. This confirms a conjecture of Aharoni. We also prove an analogous result for perfect matchings.

中文翻译:

在狄拉克定理的彩虹版本上

收集 G = { G 1个 G s } 同一顶点集上不一定不同的图 V H 在顶点 V 是一个 G -如果存在双射则横向 ϕ Ë H [ s ] 这样 Ë Ë G ϕ Ë 对所有人 Ë Ë H 。我们证明 | V | = s 3 δ G 一世 s / 2 每个 一世 [ s ] ,存在一个 G -是汉密尔顿周期的横向。这证实了Aharoni的猜想。我们还证明了完美匹配的相似结果。
更新日期:2020-05-19
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