fractional coloring, minors

Fractional Hadwiger ★★

Conjecture For every graph $G$ ,
(a) $\chi_f(G)\leq\text{had}(G)$
(b) $\chi(G)\leq\text{had}_f(G)$
(c) $\chi_f(G)\leq\text{had}_f(G)$ .

Posted by David Wood
updated March 16th, 2014