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Row pathwidth of complete binary trees

Jędrzej Hodor, Piotr Micek

math.COarXiv:2608.09495

Abstract

We show that if a complete binary tree of height h is isomorphic to a subgraph of the strong product of a graph H and a path, then pw(H) is Ω(h). This solves a problem posed by Bose, Dujmović, Javarsineh, Morin, and Wood (2022). The proof was found by OpenAI's GPT-5.6 Sol Pro.

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