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Topic: 4 Color Conjecture
Replies: 1   Last Post: Oct 6, 1999 7:53 PM

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C. Q. Zhang

Posts: 3
Registered: 12/8/04
Re: 4 Color Conjecture
Posted: Oct 6, 1999 7:53 PM
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Note that New Mexico and Utah are not neighbors,
Arizona and Colorado are not neighbors either
since the length of their common boundary is ZERO.

>From: "brandon szerenyi" <>
>Subject: 4 Color Conjecture
>Date: Wed, 06 Oct 1999 19:25:56 EDT
>Hello, my name is Brandon Szerenyi. I am a senior attending Phoenixville
>Area High School. My Discrete Math teacher, Mr. Weinstein, was in DREI'99
>DIMACS program over the summer. We are currently working on graph
> I was wondering if you need 4 colors for New Mexico, Arizona, Utah, and
>Colorado for the map of the U.S.A. If so, couldn't you add a fifth state
>that connects at the common point, thus violating the 4 Color Conjecture?
>Get Your Private, Free Email at

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