Kazhdan groups have cost 1
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Peer-reviewed
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Abstract
Abstract: We prove that every countably infinite group with Kazhdan’s property (T) has cost 1, answering a well-known question of Gaboriau. It remains open if they have fixed price 1.
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Funder: Alfréd Rényi Institute of Mathematics
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Inventiones mathematicae
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0020-9910
1432-1297
1432-1297
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221
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Springer Berlin Heidelberg
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Except where otherwised noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/