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The averaging method for perturbations of mixing flows

Published online by Cambridge University Press:  01 December 1997

H. SCOTT DUMAS
Affiliation:
Department of Mathematics, University of Cincinnati, Cincinnati, OH 45221–0025, USA
FRANÇOIS GOLSE
Affiliation:
School of Mathematics, Institute for Advanced Study, Olden Lane, Princeton, NJ 08540, USA

Abstract

For a class of multiphase averaging problems in which the unperturbed flow of the fast variables is a transitive Anosov flow or is ‘sufficiently rapidly mixing’, we obtain what we believe is an optimal power-law estimate, in the small parameter, of the rate at which the average maximum difference between solutions of the exact and averaged problems converges to zero. This verifies and extends an earlier conjectural remark by V. I. Arnold.

Type
Research Article
Copyright
1997 Cambridge University Press

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