Packing A-Paths of Length Zero Modulo Four

preprint2020arXivOpen access

Abstract

We show that A-paths of length 0 modulo 4 have the Erdős-Pósa property. We also prove that A-paths of length 2 modulo 4 have the property but that A-paths of length 1 or of length 3 modulo 4 do not have it.

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