Modular forms with large coefficient fields via congruences

We use the theory of congruences between modular forms to prove the existence of newforms with square-free level having a fixed number of prime factors such that the degree of their coefficient fields is arbitrarily large. We also prove a similar result for certain almost square-free levels.

Detalles Bibliográficos
Autores: Dieulefait, Luis, Jiménez Urroz, Jorge|||0000-0002-2395-4478, Ribet, Keneth
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/81139
Acceso en línea:https://hdl.handle.net/2117/81139
https://dx.doi.org/10.1007/s40993-015-0003-9
Access Level:acceso abierto
Palabra clave:Numerical analysis
Anàlisi numèrica
Classificació AMS::65 Numerical analysis::65L Ordinary differential equations
Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics
Descripción
Sumario:We use the theory of congruences between modular forms to prove the existence of newforms with square-free level having a fixed number of prime factors such that the degree of their coefficient fields is arbitrarily large. We also prove a similar result for certain almost square-free levels.