The Annals of Probability
- Ann. Probab.
- Volume 40, Number 1 (2012), 74-102.
Large deviation properties of weakly interacting processes via weak convergence methods
We study large deviation properties of systems of weakly interacting particles modeled by Itô stochastic differential equations (SDEs). It is known under certain conditions that the corresponding sequence of empirical measures converges, as the number of particles tends to infinity, to the weak solution of an associated McKean–Vlasov equation. We derive a large deviation principle via the weak convergence approach. The proof, which avoids discretization arguments, is based on a representation theorem, weak convergence and ideas from stochastic optimal control. The method works under rather mild assumptions and also for models described by SDEs not of diffusion type. To illustrate this, we treat the case of SDEs with delay.
Ann. Probab., Volume 40, Number 1 (2012), 74-102.
First available in Project Euclid: 3 January 2012
Permanent link to this document
Digital Object Identifier
Mathematical Reviews number (MathSciNet)
Zentralblatt MATH identifier
Primary: 60F10: Large deviations 60K35: Interacting random processes; statistical mechanics type models; percolation theory [See also 82B43, 82C43]
Secondary: 60B10: Convergence of probability measures 60H10: Stochastic ordinary differential equations [See also 34F05] 34K50: Stochastic functional-differential equations [See also , 60Hxx] 93E20: Optimal stochastic control
Budhiraja, Amarjit; Dupuis, Paul; Fischer, Markus. Large deviation properties of weakly interacting processes via weak convergence methods. Ann. Probab. 40 (2012), no. 1, 74--102. doi:10.1214/10-AOP616. https://projecteuclid.org/euclid.aop/1325604997