3 problems
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The improper 4-coloring conjecture for toroidal graphs with defect sequence
Improper coloring conjecture for toroidal graphs. Every toroidal graph is -colorable.
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Equality of the d-improper chromatic number and chromatic number under strong product with a clique
The d-improper chromatic product conjecture. The corresponding integral equality should also hold:
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Yan et al.'s Ohba-like conjecture for improper colorings
Let be a graph and let be a nonnegative integer. Let and denote respectively the -improper chromatic number and the -improper list chromatic…