## The Annals of Applied Probability

### Stochastic functional differential equations driven by Lévy processes and quasi-linear partial integro-differential equations

Xicheng Zhang

#### Abstract

In this article we study a class of stochastic functional differential equations driven by Lévy processes (in particular, $\alpha$-stable processes), and obtain the existence and uniqueness of Markov solutions in small time intervals. This corresponds to the local solvability to a class of quasi-linear partial integro-differential equations. Moreover, in the constant diffusion coefficient case, without any assumptions on the Lévy generator, we also show the existence of a unique maximal weak solution for a class of semi-linear partial integro-differential equation systems under bounded Lipschitz assumptions on the coefficients. Meanwhile, in the nondegenerate case (corresponding to $\Delta^{\alpha/2}$ with $\alpha\in(1,2]$), based upon some gradient estimates, the existence of global solutions is established too. In particular, this provides a probabilistic treatment for the nonlinear partial integro-differential equations, such as the multi-dimensional fractal Burgers equations and the fractal scalar conservation law equations.

#### Article information

Source
Ann. Appl. Probab., Volume 22, Number 6 (2012), 2505-2538.

Dates
First available in Project Euclid: 23 November 2012

https://projecteuclid.org/euclid.aoap/1353695960

Digital Object Identifier
doi:10.1214/12-AAP851

Mathematical Reviews number (MathSciNet)
MR3024975

Zentralblatt MATH identifier
1266.60122

#### Citation

Zhang, Xicheng. Stochastic functional differential equations driven by Lévy processes and quasi-linear partial integro-differential equations. Ann. Appl. Probab. 22 (2012), no. 6, 2505--2538. doi:10.1214/12-AAP851. https://projecteuclid.org/euclid.aoap/1353695960

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