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Amenable actions, free products and a fixed point property

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Publication date
10 May 2005
Publisher
'Wiley'
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    Abstract

    We investigate the class of groups admitting an action on a set with an invariant mean. It turns out that many free products admit such an action. We give a complete characterisation of such free products in terms of a strong fixed point property.Comment: 12 page

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      Infoscience - École polytechnique fédérale de Lausanne

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