Abstract:
In this paper, we determine the q-expansions of vector-valued modular forms (Knopp and Mason in Ill. J. Math. 48:1345-1366, 2004; Acta Arith. 110(2): 117-124, 2003) of large negative weight on the full modular group where we allow poles in the upper half plane and at infinity. © 2011 Springer Science+Business Media, LLC.