Amenable actions, free products and a fixed point property
classification
🧮 math.GR
math.DS
keywords
freeproductsactionfixedpointpropertyactionsadmit
read the original 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.
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