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Ergodicity of hypoeliptic SDEs driven by fractional Brownian motion

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Hairer, Martin and Pillai, Natesh S. (2009) Ergodicity of hypoeliptic SDEs driven by fractional Brownian motion. Working Paper. Coventry: University of Warwick. Centre for Research in Statistical Methodology. Working papers, Vol.2009 (No.38).

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Abstract

We demonstrate that stochastic differential equations (SDEs) driven by fractional
Brownian motion with Hurst parameter H > 1/2 have similar ergodic properties as
SDEs driven by standard Brownian motion. The focus in this article is on hypoelliptic
systems satisfying Hormander’s condition. We show that such systems satisfy a suitable
version of the strong Feller property and we conclude that they admit a unique
stationary solution that is physical in the sense that it does not "look into the future".
The main technical result required for the analysis is a bound on the moments of the
inverse of the Malliavin covariance matrix, conditional on the past of the driving noise.

Item Type: Working or Discussion Paper (Working Paper)
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Science, Engineering and Medicine > Science > Mathematics
Faculty of Science, Engineering and Medicine > Science > Statistics
Library of Congress Subject Headings (LCSH): Stochastic differential equations, Brownian motion processes, Ergodic theory
Series Name: Working papers
Publisher: University of Warwick. Centre for Research in Statistical Methodology
Place of Publication: Coventry
Official Date: 2009
Dates:
DateEvent
2009Published
Volume: Vol.2009
Number: No.38
Number of Pages: 28
Institution: University of Warwick
Status: Not Peer Reviewed
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 1 August 2016
Date of first compliant Open Access: 1 August 2016

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