Showing 1 - 10 of 32
We obtain high-density fluctuation limits for trajectories of the motions in Cox systems of independent motions in "Rd". The motions are quite general; they include a large class of diffusions, Brownmian bridges and fractional Brownian motions. The limits take values ina space of distributions...
Persistent link: https://www.econbiz.de/10010837012
We constructs a class of seperprocesses by taking the high density limit of a sequence of interacting-branching particle systems. The spatial motion of the superprocess is determined by a system of interacting diffusions, the branching density is given by an arbitary bounded non-negative Borel...
Persistent link: https://www.econbiz.de/10010837022
We introduce adapted sets and optional sets and we study a type of strong Markov property for set-indexed precesses, that can be associated with the sharp Markov property defined by Ivanoff and Merzbach (2000a).
Persistent link: https://www.econbiz.de/10010837026
We propose a Poisson modelling approach to random effects Cox proportional hazards models. Specifically we describe methods of statistical inference for a class of random effects Cox models which accommodate a wide range of nested random effects distributions. The orthodox BLUP approach to...
Persistent link: https://www.econbiz.de/10010837028
superiority of the proposed estimator for both ridge parameter k and departure parameter (triangle symbol) are provided. Some …
Persistent link: https://www.econbiz.de/10005575039
Persistent link: https://www.econbiz.de/10005575040
We prove a functional limit theorem for the rescaled occupation time fluctuations of a (d, , )- branching particle system (particles moving in Rd according to a symmetric -stable L´evy process, branching law in the domain of attraction of a (1 + )-stable law, 0 < < 1, uniform Poisson initial state) in the case of intermediate dimensions, / < d < (1 + )/. The limit is a process of the form K, where K is a constant, is the Lebesgue measure on Rd, and = (t)t0 is a (1+)-stable process which has long range dependence. There are two long range dependence regimes, one for all > d/(d + ), which coincides with...</<>
Persistent link: https://www.econbiz.de/10005575042
analogous to those of fBm, but the increments on non-overlapping intervals are more weakly correlated and their covariance … fluctuations of branching particle systems for h >= 1 and we exhibit the long memory effect of the initial condition. …
Persistent link: https://www.econbiz.de/10005773128
, under the assumption that the covariance coefficient u(n) decays exponentially as n -> (infinity symbol). The main tools …
Persistent link: https://www.econbiz.de/10005773130
estimator and the model statistic are asymptotically independent; if a sequence converges in design law, it also converges in … the law of the product space; and the distribution theory of the sample estimating equation estimator around a super …
Persistent link: https://www.econbiz.de/10005773133