[seqfan] Re: Determine whether a number is represented by a binary quadratic form
N. J. A. Sloane
njas at research.att.com
Sun Jul 11 17:45:34 CEST 2010
Two classic books on this subject are
David A. Cox, Primes of Form x^2 + n y^2, Wiley, 1989.
Cassels, Rational Quadratic Forms, Cambridge Univ. Press
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