We extend Venkatesh's proof of the converse theorem for classical holomorphic modular forms to arbitrary level and character. The method of proof, via the Petersson trace formula, allows us to treat arbitrary degree 2 gamma factors of Selberg class type.
机构:
Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, GenovaDipartimento di Matematica, Università di Genova, via Dodecaneso 35, Genova