The toroidal efficient total coloring conjecture
Let be a toroidal cubic map whose 1-skeleton is a simple cubic graph of girth . Call toroidally 3-edge connected when the bicutout condition defined in the source holds, and call a belt a cycle of the type considered in the source. Toroidal efficient total coloring conjecture. If is toroidally 3-edge connected and every belt has length divisible by , then admits an efficient total coloring compatible with . The supplied text gives no resolution or supporting context beyond this assertion.
References
Primary source
Italo J Dejter, “Periodic efficient total girth colorings in cubic maps of girth 4 correspond to 3-permutation face colorings”, arXiv:2604.02991 (2026).
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