Uniformization of triangle modular curves

In the present article, we determine explicit uniformizations of modular curves attached to triangle Fuchsian groups with cusps. Their Hauptmoduln are obtained by integration of non-linear differential equations of the third order. Series expansions involving integral coefficients are calculated aro...

ver descrição completa

Detalhes bibliográficos
Autores: Bayer i Isant, Pilar, 1946-, Travesa i Grau, Artur
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2007
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/132423
Acesso em linha:https://hdl.handle.net/2445/132423
Access Level:Acceso aberto
Palavra-chave:Funcions automòrfiques
Teoria de grups
Automorphic functions
Group theory
Descrição
Resumo:In the present article, we determine explicit uniformizations of modular curves attached to triangle Fuchsian groups with cusps. Their Hauptmoduln are obtained by integration of non-linear differential equations of the third order. Series expansions involving integral coefficients are calculated around the cusps as well as around the elliptic points. The method is an updated form of a differential construction of the elliptic modular function j, first performed by Dedekind in 1877. Subtle differences between automorphic functions with respect to conjugate Fuchsian groups become apparent.