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Subgroups of infinite index in Fuchsian groups

โœ Scribed by A. Howard M. Hoare; Abraham Karrass; Donald Solitar

Publisher
Springer-Verlag
Year
1972
Tongue
French
Weight
645 KB
Volume
125
Category
Article
ISSN
0025-5874

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๐Ÿ“œ SIMILAR VOLUMES

Subgroups of finite index of Fuchsian gr
Subgroups of finite index of Fuchsian groups
โœ A. Howard M. Hoare; Abraham Karrass; Donald Solitar ๐Ÿ“‚ Article ๐Ÿ“… 1971 ๐Ÿ› Springer-Verlag ๐ŸŒ French โš– 612 KB
Finitely Presented Normal Subgroups of a
Finitely Presented Normal Subgroups of a Product of Fuchsian Groups
โœ F.E.A. Johnson ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 109 KB

We show that if โŒซ is a finitely presented normal subgroup of a product G = G 1 2 of Fuchsian groups which projects nontrivially to each factor, then โŒซ has finite index in G = G . The proof uses the author's previous reduction of the descrip-1 2 tion of normal subdirect products to the abelian case