Representing Primes as x^2 + 5y^2: An Inductive Proof that Euler Missed
Abstract
We present an elementary inductive proof which Euler could have obtained, for the corresponding result as the title indicates, had he refined a bit his proof for Fermat's assertion on representing primes as two squares.
 Publication:

arXiv Mathematics eprints
 Pub Date:
 June 2006
 arXiv:
 arXiv:math/0606547
 Bibcode:
 2006math......6547Z
 Keywords:

 Mathematics  Number Theory;
 11A41
 EPrint:
 7 pages, no figures. Version 2: Revised as suggested by the referees