Electronic Journal of Probability
- Electron. J. Probab.
- Volume 24 (2019), paper no. 116, 40 pp.
Functional inequalities for marked point processes
Ian Flint, Nicolas Privault, and Giovanni Luca Torrisi
Abstract
In recent years, a number of functional inequalities have been derived for Poisson random measures, with a wide range of applications. In this paper, we prove that such inequalities can be extended to the setting of marked temporal point processes, under mild assumptions on their Papangelou conditional intensity. First, we derive a Poincaré inequality. Second, we prove two transportation cost inequalities. The first one refers to functionals of marked point processes with a Papangelou conditional intensity and is new even in the setting of Poisson random measures. The second one refers to the law of marked temporal point processes with a Papangelou conditional intensity, and extends a related inequality which is known to hold on a general Poisson space. Finally, we provide a variational representation of the Laplace transform of functionals of marked point processes with a Papangelou conditional intensity. The proofs make use of an extension of the Clark-Ocone formula to marked temporal point processes. Our results are shown to apply to classes of renewal, nonlinear Hawkes and Cox point processes.
Article information
Source
Electron. J. Probab., Volume 24 (2019), paper no. 116, 40 pp.
Dates
Received: 10 October 2018
Accepted: 28 September 2019
First available in Project Euclid: 11 October 2019
Permanent link to this document
https://projecteuclid.org/euclid.ejp/1570759241
Digital Object Identifier
doi:10.1214/19-EJP369
Subjects
Primary: 60G55: Point processes 60H07: Stochastic calculus of variations and the Malliavin calculus
Keywords
Clark-Ocone formula Malliavin calculus marked point processes Poincaré inequality transportation cost inequalities variational representation
Rights
Creative Commons Attribution 4.0 International License.
Citation
Flint, Ian; Privault, Nicolas; Torrisi, Giovanni Luca. Functional inequalities for marked point processes. Electron. J. Probab. 24 (2019), paper no. 116, 40 pp. doi:10.1214/19-EJP369. https://projecteuclid.org/euclid.ejp/1570759241