Imo 2010-3
Posted: Thu Dec 09, 2010 4:34 am
Find all functions $g:\mathbb N \to \mathbb N$ such that $(g(m)+n)(g(n)+m)$ is a perfect square for positive integer $m,n$
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Re: Imo 2010-3
Posted: Sat Dec 11, 2010 9:21 pm
Whoa! My precious! (lost it)