Electronic Communications in Probability
- Electron. Commun. Probab.
- Volume 19 (2014), paper no. 30, 14 pp.
When are increment-stationary random point sets stationary?
In a recent work, Blanc, Le Bris, and Lions defined a notion of increment-stationarity for random point sets, which allowed them to prove the existence of a thermodynamic limit for two-body potential energies on such point sets (under the additional assumption of ergodicity), and to introduce a variant of stochastic homogenization for increment-stationary coefficients. Whereas stationary random point sets are increment-stationary, it is not clear a priori under which conditions increment-stationary random point sets are stationary.In the present contribution, we give a characterization of the equivalence of both notions of stationarity based on elementary PDE theory in the probability space.This allows us to give conditions on the decay of a covariance function associated with the random point set, which ensure that increment-stationary random point sets are stationary random point sets up to a random translation with bounded second moment in dimensions $d>2$. In dimensions $d=1$ and $d=2$, we show that such sufficient conditions cannot exist.
Electron. Commun. Probab., Volume 19 (2014), paper no. 30, 14 pp.
Accepted: 18 May 2014
First available in Project Euclid: 7 June 2016
Permanent link to this document
Digital Object Identifier
Mathematical Reviews number (MathSciNet)
Zentralblatt MATH identifier
Primary: 60D05: Geometric probability and stochastic geometry [See also 52A22, 53C65]
Secondary: 39A70: Difference operators [See also 47B39] 60H25: Random operators and equations [See also 47B80]
This work is licensed under a Creative Commons Attribution 3.0 License.
Gloria, Antoine. When are increment-stationary random point sets stationary?. Electron. Commun. Probab. 19 (2014), paper no. 30, 14 pp. doi:10.1214/ECP.v19-3288. https://projecteuclid.org/euclid.ecp/1465316732