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Invariance principles for self-similar set-indexed random fields
Abstract : For a stationary random field $(X_j)_{j\in\Z^d}$ and some measure m on $\R^d$, we consider the set-indexed weighted sum process $S_n(A)=\sum_{j\in\Z^d}m(nA\cap R_j)^\frac12 X_j$, where R_j is the unit cube with lower corner j. We establish a general invariance principle under a p-stability assumption on the X_j's and an entropy condition on the class of sets A. The limit processes are self-similar set-indexed Gaussian processes with continuous sample paths. Using Chentsov's type representations to choose appropriate measures m and particular sets A, we show that these limits can be Lévy (fractional) Brownian fields or (fractional) Brownian sheets.
Cited literature [34 references]
https://hal.archives-ouvertes.fr/hal-00716437
Contributor : Hermine Biermé Connect in order to contact the contributor
Submitted on : Friday, March 22, 2013 - 3:15:55 PM
Last modification on : Friday, April 8, 2022 - 10:48:03 AM
Long-term archiving on: : Sunday, April 2, 2017 - 6:25:46 PM
Contributor : Hermine Biermé Connect in order to contact the contributor
Submitted on : Friday, March 22, 2013 - 3:15:55 PM
Last modification on : Friday, April 8, 2022 - 10:48:03 AM
Long-term archiving on: : Sunday, April 2, 2017 - 6:25:46 PM
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