Abstract
We calculate cuspidal values of the modular transform of the principal Eisenstein series of weight 1. We obtain this by looking at derivatives of the double sine function. Our result is considered to be an explicit calculation of values of a Stirling modular function.
Citation
Nobushige Kurokawa. "Automorphy of the principal Eisenstein series of weight 1: An application of the double sine function." Kodai Math. J. 32 (3) 391 - 403, October 2009. https://doi.org/10.2996/kmj/1257948885
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