Some properties of the wishart processes and a matrix extension of the Hartman-Watson laws

被引:32
作者
Donati-Martin, C
Doumerc, Y
Matsumoto, H
Yor, M
机构
[1] Univ Paris 06, Lab Probabilites & Modeles Aleatoires, F-75252 Paris, France
[2] Univ Toulouse 3, Lab Stat & Probabilites, F-31062 Toulouse, France
[3] Nagoya Univ, Grad Sch Informat Sci, Chikusa Ku, Nagoya, Aichi 4648601, Japan
关键词
D O I
10.2977/prims/1145475450
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The aim of this paper is to discuss for Wishart processes some properties which are analogues of the corresponding well-known ones for Bessel processes. In fact, we mainly concentrate on the local absolute continuity relationship between the laws of Wishart processes with different dimensions, a property which, in the case of Bessel processes, has proven to play a rather important role in a number of applications.
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页码:1385 / 1412
页数:28
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