Four color theorem from three points of view

Yuri Matiyasevich

doi:10.1215/ijm/1498032030

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Home > Journals > Illinois J. Math. > Volume 60 > Issue 1 > Article

Spring 2016 Four color theorem from three points of view

Yuri Matiyasevich

Illinois J. Math. 60(1): 185-205 (Spring 2016). DOI: 10.1215/ijm/1498032030

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Abstract

The Four Color Conjecture, which in 1977 became the Four Color Theorem of Kenneth Appel and Wolfgang Haken, is famous for the number of its reformulations. Three of them found by the author at different time are discussed in this paper.

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Yuri Matiyasevich. "Four color theorem from three points of view." Illinois J. Math. 60 (1) 185 - 205, Spring 2016. https://doi.org/10.1215/ijm/1498032030