The bounded twin-width conjecture for tournaments

Let k1k\geq 1. A tournament has twin-width at most kk if its twin-width is at most kk. The bounded twin-width conjecture. The class of tournaments with twin-width at most kk is χ\operatorname{\overrightarrow{\chi}}-bounded. This asks whether bounded twin-width controls dichromatic number through the clique number; the paper gives examples showing that bounded twin-width does not imply bounded dichromatic number.

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Primary source

Pierre Aboulker, Guillaume Aubian, Pierre Charbit and Raul Lopes, “Clique number of tournaments”, arXiv:2310.04265 (2026).

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