A remark on a conjecture of Borwein and Choi
arXiv:math/0412239 · doi:10.1090/S0002-9939-05-07980-3
Abstract
We prove the remaining case of a conjecture of Borwein and Choi concerning an estimate on the square of the number of solutions to n=x^2+Ny^2 for a squarefree integer N.
7 pages, to appear in Proc. Amer. Math. Soc