Dynamics of Nonlinear Reaction-Diffusion Equations With Small Levy Noise

Debussche, Arnaud; Högele, Michael; Imkeller, Peter

ISBN 10: 3319008277 / ISBN 13: 9783319008271

Editore: Springer, 2013

Codice articolo 19783539-n

Riassunto:

This work considers a small random perturbation of alpha-stable jump type nonlinear reaction-diffusion equations with Dirichlet boundary conditions over an interval. It has two stable points whose domains of attraction meet in a separating manifold with several saddle points. Extending a method developed by Imkeller and Pavlyukevich it proves that in contrast to a Gaussian perturbation, the expected exit and transition times between the domains of attraction depend polynomially on the noise intensity in the small intensity limit. Moreover the solution exhibits metastable behavior: there is a polynomial time scale along which the solution dynamics correspond asymptotically to the dynamic behavior of a finite-state Markov chain switching between the stable states.

Dalla quarta di copertina:

This work considers a small random perturbation of alpha-stable jump type nonlinear reaction-diffusion equations with Dirichlet boundary conditions over an interval. It has two stable points whose domains of attraction meet in a separating manifold with several saddle points. Extending a method developed by Imkeller and Pavlyukevich it proves that in contrast to a Gaussian perturbation, the expected exit and transition times between the domains of attraction depend polynomially on the noise intensity in the small intensity limit. Moreover the solution exhibits metastable behavior: there is a polynomial time scale along which the solution dynamics correspond asymptotically to the dynamic behavior of a finite-state Markov chain switching between the stable states.

Dati bibliografici

Titolo: Dynamics of Nonlinear Reaction-Diffusion ...
Casa editrice: Springer
Data di pubblicazione: 2013
Legatura: Brossura
Condizione: New