JournalsggdVol. 8, No. 3pp. 775–788

Subgroups approximatively of finite index and wreath products

  • Yves Cornulier

    Université Paris-Sud, Orsay, France
Subgroups approximatively of finite index and wreath products cover
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Abstract

In a group,we introduce a notion of subgroup approximatively of finite index, which extends the notion of groups approximable by finite groups. We deduce a characterization of (restricted, permutational) wreath products that are approximable by finite groups.

Cite this article

Yves Cornulier, Subgroups approximatively of finite index and wreath products. Groups Geom. Dyn. 8 (2014), no. 3, pp. 775–788

DOI 10.4171/GGD/247