Constructing the Oseledets decomposition with subspace growth estimates

2021/10/25 by Lee, George
#Dynamical Systems (math.DS) #FOS: Mathematics

paper · doi:10.48550/arxiv.2110.13226

Abstract

The semi-invertible version of Oseledets' multiplicative ergodic theorem providing a decomposition of the underlying state space of a random linear dynamical system into fast and slow spaces is deduced for a strongly measurable cocycle on a separable Banach space. This work represents a significantly simplified means of obtaining the result, using measurable growth estimates on subspaces for linear operators combined with a modified version of Kingman's subadditive ergodic theorem.

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