Representations of squares by certain quinary quadratic forms Shaun Cooper; Heung Yeung Lam; Dongxi Ye — 2013 Acta Arithmetica
An odd square as a sum of an odd number of odd squares Heng Huat Chan; Shaun Cooper; Wen-Chin Liaw — 2008 Acta Arithmetica
A combinatorial proof of a result from number theory. Cooper, Shaun; Hirschhorn, Michael — 2004 Integers
Relations among Fourier coefficients of certain eta products. Cooper, Shaun; Gun, Sanoli; Hirschhorn, Michael; Ramakrishnan, B. — 2005 Integers