Mathematics – Probability
Scientific paper
2006-09-11
Stochastic Process. Appl. 118 (2008), no. 1, 28-52
Mathematics
Probability
22 pages
Scientific paper
10.1016/j.spa.2007.03.008
We prove functional limits theorems for the occupation time process of a system of particles moving independently in $R^d$ according to a symmetric $\alpha$-stable L\'evy process, and starting off from an inhomogeneous Poisson point measure with intensity measure $\mu(dx)=(1+|x|^{\gamma})^{-1}dx,\gamma>0$, and other related measures. In contrast to the homogeneous case $(\gamma=0)$, the system is not in equilibrium and ultimately it vanishes, and there are more different types of occupation time limit processes depending on arrangements of the parameters $\gamma, d$ and $\alpha$. The case $\gamma
Bojdecki Tomasz
Gorostiza Luis G.
Talarczyk Anna
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