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Decomposition of Complete Bipartite Graphs into Cycles of Distinct Even Lengths

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Abstract

Let \(K_{n,n}\) be the complete bipartite graph with two parts of equal size n. In this paper, it is shown that depending on whether n is even or odd, \(K_{n,n}\) or \(K_{n,n}-I\), where I is a 1-factor of \(K_{n,n}\), can be decomposed into cycles of distinct even lengths for any integer \(n \ge 2\) with the exception of \(n = 4\).

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Acknowledgments

The authors wish to thank the referees for their helpful advice, especially suggesting the better terms and sentences in order to improve the readability of the manuscript. The work of C.-M. Fu was supported in part by MOST 103-2115-M-032-002. The work of M. Mishima was supported in part by JSPS under Grant-in-Aid for Scientific Research (C)25400200 and (B)15H03636.

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Correspondence to Miwako Mishima.

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Fu, CM., Huang, KC. & Mishima, M. Decomposition of Complete Bipartite Graphs into Cycles of Distinct Even Lengths. Graphs and Combinatorics 32, 1397–1413 (2016). https://doi.org/10.1007/s00373-015-1664-9

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  • DOI: https://doi.org/10.1007/s00373-015-1664-9

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