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A topological Tits alternative

Emmanuel Breuillard, Tsachik Gelander

math.GRarXiv:math/0403043

Abstract

Let k be a local field, and G a linear group over k. We prove that either G contains a relatively open solvable subgroup, or it contains a relatively dense free subgroup. This result has applications in dynamics, Riemannian foliations and profinite groups.

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