版权所有:内蒙古大学图书馆 技术提供:维普资讯• 智图
内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:Univ Sfax Fac Sci Sfax Tunisia
出 版 物:《JOURNAL OF THEORETICAL PROBABILITY》 (理论概率杂志)
年 卷 期:2008年第21卷第4期
页 面:773-790页
核心收录:
学科分类:07[理学] 0714[理学-统计学(可授理学、经济学学位)] 0701[理学-数学] 070101[理学-基础数学]
主 题:division algorithm Wishart distribution Riesz distribution Beta-Riesz distribution functional equation
摘 要:Bobecka and Wesolowski (Studia Math. 152:147-160, [2002]) have shown that, in the Olkin and Rubin characterization of the Wishart distribution (see Casalis and Letac in Ann. Stat. 24:763-786, [1996]), when we use the division algorithm defined by the quadratic representation and replace the property of invariance by the existence of twice differentiable densities, we still have a characterization of the Wishart distribution. In the present work, we show that when we use the division algorithm defined by the Cholesky decomposition, we get a characterization of the Riesz distribution.