Abstract
We give a complete solution of the fundamental problem of existence of quasi-invariant measures in innite dimensional vector spaces considered and partially solved by I.M. Gelfand in 1967 [4]. Our general result shows particularly that in all innite dimensional usual vector spaces, in particular,in all Fr echet, Banach or Hilbert spaces and in all spaces of distributions, the only quasi-invariant measure is null measure.
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Schedule a callMore From: Bulletin of the Belgian Mathematical Society - Simon Stevin
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