Path-space moderate deviations for a class of Curie–Weiss models with dissipation

Autor: Francesca Collet, Richard C. Kraaij
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Stochastic Processes and their Applications, 130(7)
ISSN: 0304-4149
Popis: We modify the spin-flip dynamics of the Curie–Weiss model with dissipation in Dai Pra, Fischer and Regoli (2013) by considering arbitrary transition rates and we analyze the phase-portrait as well as the dynamics of moderate fluctuations for macroscopic observables. We obtain path-space moderate deviation principles via a general analytic approach based on the convergence of non-linear generators and uniqueness of viscosity solutions for associated Hamilton–Jacobi equations. The moderate asymptotics depend crucially on the phase we are considering and, moreover, their behavior may be influenced by the choice of the rates.
Databáze: OpenAIRE