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A note about measures and Jacobians of singular random matrices
Authors:José A Díaz-García
Institution:Department of Statistics and Computation, Universidad Autónoma Agraria Antonio Narro, 25315 Buenavista, Saltillo Coahuila, México
Abstract:This paper explains the differences between the densities and the Jacobians of the transforms of the same singular random matrices treated by several authors. Some comments on the results proposed by Srivastava Singular Wishart and multivariate beta distributions, Ann. Statist. 31 (2003) 1537-1560] are presented. Definitions about a measure with respect to which a singular random matrix possesses a density are proposed. Finally two Jacobians of certain transforms under any of those measures are found.
Keywords:62H10  62E15
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