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searching for Hadwiger–Nelson problem 1 found (18 total)

alternate case: hadwiger–Nelson problem

Open Problems in Mathematics (460 words) [view diff] case mismatch in snippet view article find links to article

Problem, by René Schoof Hadwiger’s Conjecture, by Paul Seymour The Hadwiger–Nelson Problem, by Alexander Soifer Erdős’s Unit Distance Problem, by Endre Szemerédi