Pappas, T. "The Four-Color Map Problem: Topology Turns the Tables on Map Coloring. ... Wilson, R. Four Colors Suffice : How the Map Problem Was Solved. ...
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mathworld.wolfram.com/Four-ColorTheorem.html
mathworld.wolfram.com/Four-ColorTheorem.html
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This page and its attachments are organized around a talk first given at the Mathematics Department of Vanderbilt University on May 2, 1997. I'll describe the multivariate spline problem, the four color map problem, the connections, and a proof of a simple spline problem by four color map techniques.
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www.math.utah.edu/~alfeld/talks/S13/4CMP.html
www.math.utah.edu/~alfeld/talks/S13/4CMP.html
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Cayley also learnt of the problem from De Morgan and on 13 June 1878 he posed a question to the London Mathematical Society asking if the Four Colour Conjecture had been solved. ... If we have a map in which every region is coloured red, green, blue or yellow except one, say X. If this final region X is not surrounded...
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www.gap-system.org/~history/HistTopics/The_four_colour_...
www.gap-system.org/~history/HistTopics/The_four_colour_theorem.html
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I don't know that I would call 1976 "recently," but yes, the four-color map problem was solved (more or less) using a computer by two prairie geniuses at the University of Illinois at Champaign-Urbana, Wolfgang Haken and Kenneth A...
http://www.straightdope.com/columns/read/117/did-they-f...
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When I was around a dozen years old I became enamored of the four-color map problem. I'm not sure how I discovered it: I remember a science-fiction story in which the problem was described. As I recall, the story's narrator discovers a solution that he then could no longer remember.
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mappa.mundi.net/locus/locus_014/
mappa.mundi.net/locus/locus_014/
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Four-Color Map Problem Other than trial and error is there any scientific or mathematical way to solve the Four Color Problem? How about even explaining it in layman's terms?
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mathforum.org/library/drmath/sets/select/dm_4-color.htm...
mathforum.org/library/drmath/sets/select/dm_4-color.html
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Date: Tue, 6 Dec 1994 07:18:51 -0500 From: Timothy Gorry Subject: Four color Map Problem Hi. My name is Tim and I'm a student at John W. Dodd, Jr. High in Freeport, NY and I'm working on a math project. Other than trial and error is there any scientific or mathematical way to solve the Four Color Problem?
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mathforum.org/library/drmath/view/57231.html
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Description of the book Four Colors Suffice: How the Map Problem Was Solved by Wilson, R., published by Princeton University Press ... "An attractive and well-written account of the solution of the Four Color Problem. . . . It tells in simple terms an ... Four Colors Suffice: How the Map Problem Was Solved; Robin Wilson...
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pup.princeton.edu/titles/7495.html
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Read This! --- The MAA Online book review column: review of Four Colors Suffice: How the Map Problem Was Solved, by Robin Wilson ... Four Colors Suffice: How the Map Problem Was Solved by Robin Wilson ... If the four color problem is not of interest to cartographers, are there other applications? Yes, the time spent on...
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www.maa.org/reviews/fourcolors.html
www.maa.org/reviews/fourcolors.html
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