Skeleton Decomposition and Law of Large Numbers for Supercritical Superprocesses
Skeleton Decomposition and Law of Large Numbers for Supercritical Superprocesses
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超临界超级过程的骨架分解和大数定律
DOI:
10.1007/s10440-018-0190-1
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发表时间:
2017-09
影响因子:
1.6
通讯作者:
Ting Yang
中科院分区:
文献类型:
--
作者:
Zhen-Qing Chen;Yan-Xia Ren;Ting Yang
The goal of this paper is twofold. First, we establish skeleton and spine decompositions for superprocesses whose underlying processes are general symmetric Hunt processes. Second, we use these decompositions to obtain weak and strong law of large numbers for supercritical superprocesses where the spatial motion is a symmetric Hunt process on a locally compact metric spaceand the branching mechanism takes the form $$ \psi _{\beta }(x,\lambda )=-\beta (x)\lambda +\alpha (x)\lambda ^{2}+ \int _{(0,{\infty })}\bigl(e^{-\lambda y}-1+\lambda y\bigr)\pi (x,dy) $$ with,andbeing a kernel fromtosatisfying. The limit theorems are established under the assumption that an associated Schrödinger operator has a spectral gap. Our results cover many interesting examples of superprocesses, including super Ornstein-Uhlenbeck process and super stable-like process. The strong law of large numbers for supercritical superprocesses are obtained under the assumption that the strong law of large numbers for an associated supercritical branching Markov process holds along a discrete sequence of times, extending an earlier result of Eckhoff et al. (Ann. Probab. 43(5):2594–2659, 2015) for superdiffusions to a large class of superprocesses. The key for such a result is due to the skeleton decomposition of superprocess, which represents a superprocess as an immigration process along a supercritical branching Markov process.
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影响因子:
0.8
作者:
Chen Zhen-Qing;Ren Yan-Xia;Yang Ting
通讯作者:
Yang Ting
影响因子:
1.7
作者:
Zhen-Qing Chen;Yanxia Ren;Hao Wang
通讯作者:
Zhen-Qing Chen;Yanxia Ren;Hao Wang
DOI:
10.1214/11-aihp448
发表时间:
2010-05
期刊:
Annales de l’Institut Henri Poincaré
影响因子:
--
作者:
A.E. Kyprianou;R.-L. Liu;A. Murillo-Salas;任艳霞
通讯作者:
任艳霞
DOI:
10.1007/978-3-642-15004-3_1
发表时间:
2011-01-01
期刊:
MEASURE-VALUED BRANCHING MARKOV PROCESSES
影响因子:
--
作者:
Li, Zenghu
通讯作者:
Li, Zenghu
DOI:
10.1016/j.anihpb.2005.03.004
发表时间:
2005-04
影响因子:
1.5
作者:
J. Engländer;A. Winter
通讯作者:
J. Engländer;A. Winter