Free subgroups of the parametrized modular group
We study free subgroups of index four of the parametrized modular group Π, the subgroup of SL(2; Z[ξ]) generated by (10 ξ1) and (01 -10). There are eight free subgroups, four of which are normal and four are non-normal. Then we study the intersections of the normal subgroups. We give canonical prese...
- Autores:
-
Pommerenke, Christian
Toro, Margarita
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2015
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/66461
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/66461
http://bdigital.unal.edu.co/67489/
- Palabra clave:
- 51 Matemáticas / Mathematics
Parametrized modular group
free subgroups
Bianchi groups
Picard group
discrete relativity theory
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional