An additive problem in the Fourier coefficients of cusp forms

Fuente: arXiv
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Autor principal: Harcos, Gergely
Formato: Preprint
Publicado: 2001
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author Harcos, Gergely
author_facet Harcos, Gergely
contents We establish an estimate on sums of shifted products of Fourier coefficients coming from holomorphic or Maass cusp forms of arbitrary level and nebentypus. These sums are analogous to the binary additive divisor sum which has been studied extensively. As an application we derive, extending work of Duke, Friedlander and Iwaniec, a subconvex estimate on the critical line for L-functions associated to character twists of these cusp forms.
format Preprint
id arxiv_https___arxiv_org_abs_math_0101096
institution arXiv
publishDate 2001
record_format arxiv
spellingShingle An additive problem in the Fourier coefficients of cusp forms
Harcos, Gergely
Number Theory
Primary 11F30, 11F37, Secondary 11M41
We establish an estimate on sums of shifted products of Fourier coefficients coming from holomorphic or Maass cusp forms of arbitrary level and nebentypus. These sums are analogous to the binary additive divisor sum which has been studied extensively. As an application we derive, extending work of Duke, Friedlander and Iwaniec, a subconvex estimate on the critical line for L-functions associated to character twists of these cusp forms.
title An additive problem in the Fourier coefficients of cusp forms
topic Number Theory
Primary 11F30, 11F37, Secondary 11M41
url https://arxiv.org/abs/math/0101096