Stochastic dynamics on slow manifolds

George W A Constable, Alan J McKane, Tim Rogers

Research output: Contribution to journalArticle

18 Citations (Scopus)
143 Downloads (Pure)

Abstract

The theory of slow manifolds is an important tool in the study of deterministic dynamical systems, giving a practical method by which to reduce the number of relevant degrees of freedom in a model, thereby often resulting in a considerable simplification. In this paper we demonstrate how the same basic methodology may also be applied to stochastic dynamical systems, by examining the behaviour of trajectories conditioned on the event that they do not depart the slow manifold. We apply the method to two models: one from ecology and one from epidemiology, achieving a reduction in model dimension and illustrating the high quality of the analytical approximations.
Original languageEnglish
Article number295002
JournalJournal of Physics A: Mathematical and Theoretical
Volume46
Issue number29
DOIs
Publication statusPublished - 26 Jul 2013

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