Extension of the Olkin and Rubin Characterization to the Wishart distribution on homogeneous cones
arXiv:1002.1451
Abstract
The Wishart distribution on an homogeneous cone is a generalization of the Riesz distribution on a symmetric cone which corresponds to a given graph. The paper extends to this distribution, the famous Olkin and Rubin characterization of the ordinary Wishart distribution on symmetric matrices.