Abstract
Each set E ⊂ ℕ is realized as the set of essential values of the multiplicity function of the Koopman operator for an ergodic conservative infinite measure preserving transformation.
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Translated from Funktsional’nyi Analiz i Ego Prilozheniya, Vol. 44, No. 3, pp. 1–13, 2010
Original Russian Text Copyright © by A. I. Danilenko and V. V. Ryzhikov
The second named author acknowledges the support of the program “Leading Scientific Schools” (grants nos. 3038.2008.1 and 8508.2010.1).
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Danilenko, A.I., Ryzhikov, V.V. Spectral multiplicities of infinite measure preserving transformations. Funct Anal Its Appl 44, 161–170 (2010). https://doi.org/10.1007/s10688-010-0021-2
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DOI: https://doi.org/10.1007/s10688-010-0021-2