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On the Ramanujan–Petersson conjecture for modular forms of half-integral weight

  • Sanoli Gun EMAIL logo and Winfried Kohnen
Published/Copyright: February 19, 2019

Abstract

We investigate the (still unknown) Ramanujan–Petersson conjecture about the growth of the Fourier coefficients of cusp forms of half-integral weight and prove that it is optimal, at least for newforms in the plus space.

MSC 2010: 11F37; 11F30

Communicated by Jan Bruinier


Acknowledgements

The authors would like to thank the referee for a very careful reading and relevant suggestions, which improved the presentation and clarity of the paper.

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Received: 2018-08-01
Revised: 2019-01-30
Published Online: 2019-02-19
Published in Print: 2019-05-01

© 2019 Walter de Gruyter GmbH, Berlin/Boston

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