Averaging strongly subadditive set functions in unimodular amenable groups. I
Averaging strongly subadditive set functions in unimodular amenable groups. I
Kieffer has considered the problem of averaging strongly subadditive, nonpositive, right invariant set functions S defined on the class ^ of precompact Borel subsets of a locally compact (unimodular) amenable group G as a means of defining entropy in a abstract probabilistic context.He shows if {A a } is a …