Differential automorphisms for modular forms on Gamma_0(4) PDF
To appear in Ramanujan Journal
An extension of the Apery number supercongruence PDF
Acta Arith. 123 (2006), 335-348
The weight of half-integral weight modular forms with few non-vanishing coefficients mod \ell PDF
Acta Arith. 127 (2007), 193-197
The distribution of powers of the partition function modulo \ell^j PDF