Artículo
On computing finite index subgroups of PSL 2 (ℤ)
Fecha de publicación:
03/2024
Editorial:
World Scientific
Revista:
Journal of Algebra and its Applications
ISSN:
0219-4988
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a method to compute finite index subgroups of PSL2(ℤ). Our strategy follows Kulkarni’s ideas, the main contribution being a recursive method to compute bivalent trees as well as their automorphism groups. As a concrete application, we compute all subgroups of index up to 20. We then use this database to produce tables with several arithmetical properties.
Palabras clave:
Bi-valent graphs
,
subgroups of the modular group
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Articulos(CIEM)
Articulos de CENT.INV.Y ESTUDIOS DE MATEMATICA DE CORDOBA(P)
Articulos de CENT.INV.Y ESTUDIOS DE MATEMATICA DE CORDOBA(P)
Citación
Mayorga Uruburu, Nicolás; Pacetti, Ariel Martín; Vendramin, Claudio Leandro; On computing finite index subgroups of PSL 2 (ℤ); World Scientific; Journal of Algebra and its Applications; 3-2024; 1-27
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