From: jpr2718@aol.com
Subject: Re: arithmétique
Date: Fri, 24 Dec 1999 04:32:36 GMT
Newsgroups: sci.math
To: franck.duffaud@libertysurf.fr
Keywords: No four squares in arithmetic progression

In article <83tpfn$r0v$1@news2.isdnet.net>,
  "franck.duffaud" <franck.duffaud@libertysurf.fr> wrote:

> Problème 4
> Il n'existe pas 4 carrés d'entiers distincts en
> progression arithmétique.

For an elementary approach, see Kevin Brown's article, No Four Squares
In Arithmetic Progression, at:

    http://www.seanet.com/~ksbrown/kmath044.htm.

For a proof using elliptic curves, see my solution to Problem 10612 in
the January 2000 American Mathematical Monthly.

John Robertson


Sent via Deja.com http://www.deja.com/
Before you buy.