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Equitable partition of graphs into induced linear forests

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Abstract

It is proved that the vertex set of any simple graph G can be equitably partitioned into k subsets for any integer \(k\ge \max \{\big \lceil \frac{\Delta (G)+1}{2}\big \rceil ,\big \lceil \frac{|G|}{4}\big \rceil \}\) so that each of them induces a linear forest.

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Acknowledgements

We are particularly grateful to Weichan Liu who suggests the constructive proofs of Lemmas 2.12.4, and also thanks Jingfen Lan, Bi Li, Yan Li and Qingsong Zou for their helpful discussions on shortening the proof of Theorem 1.3.

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Correspondence to Xin Zhang.

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Xin Zhang: Supported by the National Natural Science Foundation of China (No. 11871055) and the Youth Talent Support Plan of Xi’an Association for Science and Technology (No. 2018-6).

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Zhang, X., Niu, B. Equitable partition of graphs into induced linear forests. J Comb Optim 39, 581–588 (2020). https://doi.org/10.1007/s10878-019-00498-8

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  • DOI: https://doi.org/10.1007/s10878-019-00498-8

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