most recent 30 from http://mathoverflow.net 2013-05-19T20:23:09Z http://mathoverflow.net/feeds/user/6437 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/26473/diophantine-equation-problem Cindy 2010-05-30T17:20:48Z 2010-05-30T20:10:37Z

<p>How many positive integer solutions does the equation x^2+y^2+z^2-xz-yz = 1 have? My guess is (1,0,1), (0,1,1) and (1,1,1). What is proof of that fact that there are none other?</p>

http://mathoverflow.net/questions/26473/diophantine-equation-problem/26488#26488 Cindy 2010-05-31T01:17:27Z 2010-05-31T01:17:27Z

Hi Will, Thanks for the article.

http://mathoverflow.net/questions/26473/diophantine-equation-problem/26484#26484 Cindy 2010-05-31T01:14:17Z 2010-05-31T01:14:17Z

Thanks Kevin. This was helpful.