hadwiger_conjecture (237B)
1 # Hadwiger conjecture 2 3 https://en.wikipedia.org/wiki/Hadwiger_conjecture_(graph_theory) 4 5 Asks whether every [graph] with [chromatic_number] k has a [k_clique] as a [graph_minor] 6 7 Up: [graph_coloring] 8 9 See also: [Hadwiger_nelson_problem]