Power maps and completions of free groups and of the modular group

DOI10.1006/jabr.1996.6925zbMath0873.20017OpenAlexW2093005127MaRDI QIDQ1357562

John G. Thompson

Publication date: 2 November 1997

Published in: Journal of Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/jabr.1996.6925

zbMATH Keywords

normal subgroupsprincipal congruence subgroupssubgroups of finite indexmodular grouppower mapsprofinite topology

Mathematics Subject Classification ID

Subgroup theorems; subgroup growth (20E07) Structure of modular groups and generalizations; arithmetic groups (11F06) Fuchsian groups and their generalizations (group-theoretic aspects) (20H10) Free nonabelian groups (20E05)

Related Items (2)

Some orbits of free words that are determined by measures on finite groups ⋮ Commutators in $SL_2$ and Markoff surfaces I

Cites Work

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