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Wolfe (Stochastic Process. Appl. 12(3) (1982) 301) and Sato (Probab. Theory Related Fields 89(3) (1991) 285) gave two different representations of a random variable X1 with a self-decomposable distribution in terms of processes with independent increments. This paper shows how either of these...
Persistent link: https://www.econbiz.de/10008875458
In previous papers [T. Funaki, Y. Hariya, M. Yor, Wiener integrals for centered powers of Bessel processes, I, Markov Processes Related Fields (2006) (in press); T. Funaki, Y. Hariya, M. Yor, Wiener integrals for centered Bessel and related processes, II, Alea (2006) (in press)], the authors...
Persistent link: https://www.econbiz.de/10008872744
The existence and best L2-bounds for the Wiener type integrals , where X ranges through a wide class of Bessel-like centered processes, and f belongs to L2([0,1]), are discussed in terms of Fourier transforms associated with some characteristics of X, thus providing some unification of previous...
Persistent link: https://www.econbiz.de/10008873687
Relations between harnesses and initial enlargements of the filtration of a Lévy process with its positions at fixed times are investigated.
Persistent link: https://www.econbiz.de/10008875090
A general methodology allowing to solve the Skorokhod stopping problem for positive functionals of Brownian excursions, with the help of Brownian local time, is developed. The stopping times we consider have the following form: T[mu]=inf{t0: Ft[greater-or-equal, slanted][phi][mu]F(Lt)}. As an...
Persistent link: https://www.econbiz.de/10008875217
We discuss Brownian analogues of a celebrated theorem, due to Burke, which states that the output of a (stable, stationary) M/M/1 queue is Poisson, and the related notion of quasireversibility. A direct analogue of Burke's theorem for the Brownian queue was stated and proved by Harrison...
Persistent link: https://www.econbiz.de/10008875299
We study absolute-continuity relationships for a class of stochastic processes, including the gamma and the Dirichlet processes. We prove that the laws of a general class of non-linear transformations of such processes are locally equivalent to the law of the original process and we compute...
Persistent link: https://www.econbiz.de/10008872551
Motivated by the Kyle-Back model of "insider trading", we consider certain classes of linear transformations of two independent Brownian motions and study their canonical decomposition, i.e., their Doob-Meyer decomposition as semimartingales in their own filtration. In particular we characterize...
Persistent link: https://www.econbiz.de/10008873609
Persistent link: https://www.econbiz.de/10008874139
Persistent link: https://www.econbiz.de/10008874296