The kernel of Ribet’s isogeny for genus three Shimura curves

There are exactly nine reduced discriminants D of indefinite quaternion algebras over Q for which the Shimura curve XD attached to D has genus 3. We present equations for these nine curves. Moreover, for each D we determine a subgroup c(D) of cuspidal divisors of degree zero of the new part of the J...

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Detalhes bibliográficos
Autores: Molina Blanco, Santiago|||0000-0001-9420-2807, González Rovira, Josep|||0000-0002-9850-1609
Tipo de documento: artigo
Data de publicação:2015
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositório:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglês
OAI Identifier:oai:upcommons.upc.edu:2117/86355
Acesso em linha:https://hdl.handle.net/2117/86355
Access Level:Acceso aberto
Palavra-chave:Arithmetical algebraic geometry
Shimura varieties
Algebra
Curves, Elliptic
Àlgebra
Corbes modulars
Aritmètica
Varietats de Shimura
Àrees temàtiques de la UPC::Matemàtiques i estadística::Àlgebra
Descrição
Resumo:There are exactly nine reduced discriminants D of indefinite quaternion algebras over Q for which the Shimura curve XD attached to D has genus 3. We present equations for these nine curves. Moreover, for each D we determine a subgroup c(D) of cuspidal divisors of degree zero of the new part of the Jacobian of the modular curve of level D such that the abelian variety quotient by c(D) is the jacobian of the curve XD.