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Reformulating the Map Color Theorem
Louis H. Kauffman
Department of Mathematics, Statistics and Computer Science University of Illinois at Chicago
This paper discusses reformulations of the problem of coloring plane maps with four colors. We include discussion of the Eliahou-Kryuchkov conjecture, the Penrose formula, the vector cross product formulation and the reformulations in terms of formations and factorizations due to G. Spencer-Brown.