Abstract
Zagier constructed a cusp form for each weightk of the full modular group. We use this construction to estimate Fourier coefficients of cusp forms. In particular, we get a non-trivial estimate, by elementary methods and indicate a relationship with the Lindelof hypothesis for classical Dirichlet L-functions.
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Dedicated to the memory of Professor K G Ramanathan
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Hashim, A., Murty, M.R. On Zagier’s cusp form and the Ramanujan τ function. Proc Math Sci 104, 93–98 (1994). https://doi.org/10.1007/BF02830876
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DOI: https://doi.org/10.1007/BF02830876