Infinite cyclically 6-edge-connected counterexamples to non-conflicting flows

Let GG be a cubic graph and let FF be a perfect matching; write F\overline{F} for the complementary 22-factor. A non-conflicting nowhere-zero Z2×Z2Z_2\times Z_2-flow with respect to F\overline{F} is a nowhere-zero flow on the contraction associated with F\overline{F} satisfying the paper's non-conflict condition. The cyclically 6-edge-connected counterexample conjecture. There exist infinitely many cyclically 6-edge-connected cubic graphs GG having no such flow with respect to F\overline{F} for any perfect matching FF. This is proposed as a negative answer to a uniqueness question about the Petersen graph and remains open.

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Primary source

Vahan Mkrtchyan, “Non-conflicting no-where zero Z_2Z_2 flows in cubic graphs”, arXiv:2410.04389 (2024).

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