On martingale problems and Feller processes. (English) Zbl 1390.60278

Kühn, Franziska

Electron. J. Probab. 23, Paper No. 13, 18 p. (2018).

Summary: Let \(A\) be a pseudo-differential operator with negative definite symbol \(q\). In this paper we establish a sufficient condition such that the well-posedness of the \((A,C_c^{\infty}(\mathbb{R}^d))\)-martingale problem implies that the unique solution to the martingale problem is a Feller process. This provides a proof of a former claim by van Casteren. As an application we prove new existence and uniqueness results for Lévy-driven stochastic differential equations and stable-like processes with unbounded coefficients.

MSC:

60J25	Continuous-time Markov processes on general state spaces
60G44	Martingales with continuous parameter
60J75	Jump processes (MSC2010)
60H10	Stochastic ordinary differential equations (aspects of stochastic analysis)
60G51	Processes with independent increments; Lévy processes

Keywords:

Feller process; martingale problem; stochastic differential equation; stable-like process; unbounded coefficients

References:

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