Ramanujan's function on small primes

Fuente: arXiv
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1. Verfasser: Brent, Barry
Format: Preprint
Veröffentlicht: 2025
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author Brent, Barry
author_facet Brent, Barry
contents We denote functions mapping n to the Fourier coefficient of q^n in the expansion of a cusp form as Ramanujan functions. We empirically study the eigenvalues of determinants that represent values of these Ramanujan functions. In some cases, considered as point sets in the complex plane, they appear to oscillate as n increases. We look for regularities in this phenomenon and discuss the possibility of exploiting it to attack Lehmer's question about the existence of zeros of Ramanujan's tau function.
format Preprint
id arxiv_https___arxiv_org_abs_2512_02345
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Ramanujan's function on small primes
Brent, Barry
Number Theory
Complex Variables
11
We denote functions mapping n to the Fourier coefficient of q^n in the expansion of a cusp form as Ramanujan functions. We empirically study the eigenvalues of determinants that represent values of these Ramanujan functions. In some cases, considered as point sets in the complex plane, they appear to oscillate as n increases. We look for regularities in this phenomenon and discuss the possibility of exploiting it to attack Lehmer's question about the existence of zeros of Ramanujan's tau function.
title Ramanujan's function on small primes
topic Number Theory
Complex Variables
11
url https://arxiv.org/abs/2512.02345