Disjoint properly colored cycles in edge-colored complete bipartite graphs

Disjoint properly colored cycles in edge-colored complete bipartite graphs
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DOI:
10.1016/j.disc.2022.113095
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发表时间:
2023-01
期刊:
Discret. Math.
影响因子:
--
通讯作者:
Kiyoshi Yoshimoto
Kiyoshi Yoshimoto
中科院分区:
其他
文献类型:
--
作者:
Kiyoshi Yoshimoto

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设Kn,m是具有1≤n≤m的边色完全二部图,ΔMON(Kn,m)是Kn,m中最大单色星的叶数.本文证明了如果ΔMON(Kn,m)≤n−2 k+1,则Kn,m有k个不相交的真染色圈.
Let K n, m be an edge-colored complete bipartite graph with 1≤ n≤ m and Δ mon (K n, m) be the number of the leaves of a maximum monochromatic star in K n, m. In this paper, we show that if Δ mon (K n, m)≤ n− 2 k+ 1, then K n, m has k disjoint properly colored cycles.