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ON THE GERM-MARKOV PROPERTY OF THE GENERALIZED N-PARAMETER ORNSTE IN-UHLENBECK PROCESS

ON THE GERM-MARKOV PROPERTY OF THE GENERALIZED N-PARAMETER ORNSTE IN-UHLENBECK PROCESS
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摘要 A generalized N-parameter Ornstein-Uhlenbeck process (GOUPN) is defined asX(t)=[f(t)]-1integral from n=a to t f(s)(ds),t∈RaN, where a=(0…, 0) or (-∞, …, -∞), correspondently RaN=R+Nor RN, and η(ds) is the standard Gaussian orthogonal random measure and f is an infinitely differentiable and locally quadratically integrable positive function. In this paper it is proved that the GOUPNhas the so called germ-Markov property with respect to any bounded domain, and two examples are given which say that for spherical and some pyramid-like domains, the minimal splitting σ-algebras for the 'interior' and the 'onter' information σ-algebras are strictly 'larger' than the boundary information σ-algebras. A generalized N-parameter Ornstein-Uhlenbeck process (GOUP<sub>N</sub>) is defined asX(t)=[f(t)]<sup>-1</sup> integral from n=a to t f(s)(ds),t∈R<sub>a</sub><sup>N</sup>, where a=(0…, 0) or (-∞, …, -∞), correspondently R<sub>a</sub><sup>N</sup>=R<sub>+</sub><sup>N</sup> or R<sup>N</sup>, and η(ds) is the standard Gaussian orthogonal random measure and f is an infinitely differentiable and locally quadratically integrable positive function. In this paper it is proved that the GOUP<sub>N</sub> has the so called germ-Markov property with respect to any bounded domain, and two examples are given which say that for spherical and some pyramid-like domains, the minimal splitting σ-algebras for the 'interior' and the 'onter' information σ-algebras are strictly 'larger' than the boundary information σ-algebras.
作者 罗首军
出处 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 1989年第1期65-73,共9页 数学年刊(B辑英文版)
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