On the Supports of Measure-Valued Critical Branching Brownian Motion
Iscoe, I.
Ann. Probab., Tome 16 (1988) no. 4, p. 200-221 / Harvested from Project Euclid
Let $(X_t)_{t \geq 0}$ denote the measure-valued critical branching Brownian motion. When the support of the initial state, $X_0$, is bounded, temporally global results are given concerning the range, i.e., the size of the supports of $(X_t)_{t \geq 0}$, and the hitting (i.e., charging) probabilities of distant balls are evaluated asymptotically; they depend strongly on the dimension, $d$, of the underlying Euclidean space $\mathbb{R}^d$. In contrast, in the case $d = 1$ and $X_0 = \lambda$ (Lebesgue measure), it is shown that (spatially) local extinction occurs. Also extensions are indicated for the case of an infinite variance branching mechanism; these results are also dimensionally dependent.
Publié le : 1988-01-14
Classification:  Measure-valued branching diffusion,  support,  asymptotics,  range,  hitting probability,  local extinction,  singular elliptic boundary value problems,  60G57,  60J80,  34B15
@article{1176991895,
     author = {Iscoe, I.},
     title = {On the Supports of Measure-Valued Critical Branching Brownian Motion},
     journal = {Ann. Probab.},
     volume = {16},
     number = {4},
     year = {1988},
     pages = { 200-221},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1176991895}
}
Iscoe, I. On the Supports of Measure-Valued Critical Branching Brownian Motion. Ann. Probab., Tome 16 (1988) no. 4, pp.  200-221. http://gdmltest.u-ga.fr/item/1176991895/