Abstract
We present a functional calculus approach to the study of rates of decay in mean ergodic theorems for bounded strongly continuous operator semigroups. A central role is played by operators of the form g(A, where −A is the generator of the semigroup and g is a Bernstein function. In addition, we obtain some new results on Bernstein functions which are of independent interest.
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Dedicated to Michael Lin on the occasion of his retirement
The first and third authors were partially supported by the NCN grant DEC-2011/03/B/ST1/00407.
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Gomilko, A., Haase, M. & Tomilov, Y. Bernstein functions and rates in mean ergodic theorems for operator semigroups. JAMA 118, 545–576 (2012). https://doi.org/10.1007/s11854-012-0044-0
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DOI: https://doi.org/10.1007/s11854-012-0044-0