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Minimum degree conditions for monochromatic cycle partitioning
Journal of Combinatorial Theory Series B ( IF 1.2 ) Pub Date : 2020-08-27 , DOI: 10.1016/j.jctb.2020.07.005 Dániel Korándi , Richard Lang , Shoham Letzter , Alexey Pokrovskiy
中文翻译:
单色循环分割的最小度条件
更新日期:2020-08-27
Journal of Combinatorial Theory Series B ( IF 1.2 ) Pub Date : 2020-08-27 , DOI: 10.1016/j.jctb.2020.07.005 Dániel Korándi , Richard Lang , Shoham Letzter , Alexey Pokrovskiy
A classical result of Erdős, Gyárfás and Pyber states that any r-edge-coloured complete graph has a partition into monochromatic cycles. Here we determine the minimum degree threshold for this property. More precisely, we show that there exists a constant c such that any r-edge-coloured graph on n vertices with minimum degree at least has a partition into monochromatic cycles. We also provide constructions showing that the minimum degree condition and the number of cycles are essentially tight.
中文翻译:
单色循环分割的最小度条件
Erdős,Gyárfás和Pyber的经典结果表明,任何带有r边的完整图都有一个划分为单色循环。在这里,我们确定此属性的最小度阈值。更确切地说,我们证明存在一个常数c,使得n个顶点上的r边色图具有最小度至少 有一个分区 单色循环。我们还提供了表明最小度条件和循环数基本紧密的构造。