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Characterization of dominated splittings for operator cocycles acting on Banach spaces

Blumenthal, Alex and Morris, Ian D. (2019) Characterization of dominated splittings for operator cocycles acting on Banach spaces Journal of Differential Equations, 267 (7). pp. 3977-4013.

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Abstract

Versions of the Oseledets multiplicative ergodic theorem for cocycles acting on infinite-dimensional Banach spaces have been investigated since the pioneering work of Ruelle in 1982 and are a topic of continuing research interest. For a cocycle to induce a continuous splitting in which the growth in one subbundle exponentially dominates the growth in another requires additional assumptions; a necessary and sufficient condition for the existence of such a dominated splitting was recently given by J. Bochi and N. Gourmelon for invertible finite-dimensional cocycles in discrete time. We extend this result to cocycles of injective bounded linear maps acting on Banach spaces (in both discrete and continuous time) using an essentially geometric approach based on a notion of approximate singular value decomposition in Banach spaces. Our method is constructive, and in the finite-dimensional case yields explicit growth estimates on the dominated splitting which may be of independent interest.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mathematics
Authors :
NameEmailORCID
Blumenthal, Alex
Morris, Ian D.i.morris@surrey.ac.uk
Date : 15 September 2019
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1016/j.jde.2019.04.033
Copyright Disclaimer : © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Related URLs :
Depositing User : Clive Harris
Date Deposited : 13 May 2019 15:24
Last Modified : 13 Dec 2019 13:08
URI: http://epubs.surrey.ac.uk/id/eprint/851804

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