Abstract : Two-page paper on the notion of cost of groups and measured equivalence relations to appear in the "What is?" series in the Notices of the AMS.
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00534141
Contributor : Damien Gaboriau
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Submitted on : Monday, November 8, 2010 - 10:50:17 PM
Last modification on : Wednesday, September 12, 2018 - 2:14:15 PM
Long-term archiving on : Wednesday, February 9, 2011 - 3:09:20 AM
