Author:
HAYES BEN,KUNNAWALKAM ELAYAVALLI SRIVATSAV
Abstract
Abstract
We show that for every countable group, any sequence of approximate homomorphisms with values in permutations can be realized as the restriction of a sofic approximation of an orbit equivalence relation. Moreover, this orbit equivalence relation is uniquely determined by the invariant random subgroup of the approximate homomorphisms. We record applications of this result to recover various known stability and conjugacy characterizations for almost homomorphisms of amenable groups.
Funder
Division of Mathematical Sciences
Publisher
Cambridge University Press (CUP)
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