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An averaging principle for a completely integrable stochastic Hamiltonian system
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Li, X-M. (2008) An averaging principle for a completely integrable stochastic Hamiltonian system. Nonlinearity, Volume 21 (Number 4). pp. 803-822. doi:10.1088/0951-7715/21/4/008 ISSN 0951-7715.
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Official URL: http://dx.doi.org/10.1088/0951-7715/21/4/008
Abstract
We investigate the effective behaviour of a small transversal perturbation of order epsilon to a completely integrable stochastic Hamiltonian system, by which we mean a stochastic differential equation whose diffusion vector fields are formed from a completely integrable family of Hamiltonian functions H-i, i = 1, ..., n. An averaging principle is shown to hold and the action component of the solution converges, as epsilon -> 0, to the solution of a deterministic system of differential equations when the time is rescaled at 1/epsilon. An estimate for the rate of the convergence is given. In the case when the perturbation is a Hamiltonian vector field, the limiting deterministic system is constant in which case we show that the action component of the solution scaled at 1/epsilon(2) converges to that of a limiting stochastic differentiable equation.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QA Mathematics Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Library of Congress Subject Headings (LCSH): | Hamiltonian systems, Stochastic processes | ||||
Journal or Publication Title: | Nonlinearity | ||||
Publisher: | IOP | ||||
ISSN: | 0951-7715 | ||||
Official Date: | April 2008 | ||||
Dates: |
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Volume: | Volume 21 | ||||
Number: | Number 4 | ||||
Number of Pages: | 20 | ||||
Page Range: | pp. 803-822 | ||||
DOI: | 10.1088/0951-7715/21/4/008 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Royal Society (Great Britain), Leverhulme Trust (LT) |
Data sourced from Thomson Reuters' Web of Knowledge
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