Journal of the Ramanujan Mathematical Society
Volume 34, Issue 3, September 2019 pp. 365–371.
Angular changes of complex Fourier coefficients of cusp forms
Authors:
Mohammed Amin Amri
Author institution:ACSA Laboratory, Department of Mathematics, Faculty of Sciences, Mohammed First University, Oujda, Morocco
Summary:
In this paper, we investigate the “angular changes” behavior of
some subfamilies of Fourier coefficients of both integral and
half-integral weight holomorphic cusp forms, thus one gets
information about signs of the real an imaginary parts of these
subfamilies. These give an extension of some recent results of
Kohnen and his collaborators.
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