Newton Polygons of Hecke Operators

Fuente: arXiv
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Main Authors: Chiriac, Liubomir, Jorza, Andrei
Format: Preprint
Published: 2019
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author Chiriac, Liubomir
Jorza, Andrei
author_facet Chiriac, Liubomir
Jorza, Andrei
contents In this computational paper we verify a truncated version of the Buzzard-Calegari conjecture on the Newton polygon of the Hecke operator $T_2$ for all large enough weights. We first develop a formula for computing $p$-adic valuations of exponential sums, which we then implement to compute $2$-adic valuations of traces of Hecke operators acting on spaces of cusp forms. Finally, we verify that if Newton polygon of the Buzzard-Calegari polynomial has a vertex at $n\leq 15$, then it agrees with the Newton polygon of $T_2$ up to $n$.
format Preprint
id arxiv_https___arxiv_org_abs_1912_02909
institution arXiv
publishDate 2019
record_format arxiv
spellingShingle Newton Polygons of Hecke Operators
Chiriac, Liubomir
Jorza, Andrei
Number Theory
In this computational paper we verify a truncated version of the Buzzard-Calegari conjecture on the Newton polygon of the Hecke operator $T_2$ for all large enough weights. We first develop a formula for computing $p$-adic valuations of exponential sums, which we then implement to compute $2$-adic valuations of traces of Hecke operators acting on spaces of cusp forms. Finally, we verify that if Newton polygon of the Buzzard-Calegari polynomial has a vertex at $n\leq 15$, then it agrees with the Newton polygon of $T_2$ up to $n$.
title Newton Polygons of Hecke Operators
topic Number Theory
url https://arxiv.org/abs/1912.02909