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arxiv: 1211.1086 · v2 · pith:WDCXH2CUnew · submitted 2012-11-06 · 🧮 math.GR · math.DS

A weak Zassenhaus lemma for discrete subgroups of Diff(I)

classification 🧮 math.GR math.DS
keywords difflemmadiscretesubgroupszassenhausadmitcommutatorcontaining
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We prove a weaker version of Zassenhaus Lemma (also known as Margulis Lemma) for subgroups of Diff(I). We also show that a group with commutator subgroup containing a free subsemigroup does not admit a C_0-discrete faithful representation in Diff(I).

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