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Wishart Distributions on Homogeneous Cones

Author

Listed:
  • S. A. Andersson

    (Indiana University)

  • G. G. Wojnar

    (Frostburg State University)

Abstract

The classical family of Wishart distributions on a cone of positive definite matrices and its fundamental features are extended to a family of generalized Wishart distributions on a homogeneous cone using the theory of exponential families. The generalized Wishart distributions include all known families of Wishart distributions as special cases. The relationships to graphical models and Bayesian statistics are indicated.

Suggested Citation

  • S. A. Andersson & G. G. Wojnar, 2004. "Wishart Distributions on Homogeneous Cones," Journal of Theoretical Probability, Springer, vol. 17(4), pages 781-818, October.
    • Handle: RePEc:spr:jotpro:v:17:y:2004:i:4:d:10.1007_s10959-004-0576-z
    DOI: 10.1007/s10959-004-0576-z
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    References listed on IDEAS

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    1. Steen A. Andersson & David Madigan & Michael D. Perlman, 2001. "Alternative Markov Properties for Chain Graphs," Scandinavian Journal of Statistics, Danish Society for Theoretical Statistics;Finnish Statistical Society;Norwegian Statistical Association;Swedish Statistical Association, vol. 28(1), pages 33-85, March.
    2. Hélène Massam & Erhard Neher, 1997. "On Transformations and Determinants of Wishart Variables on Symmetric Cones," Journal of Theoretical Probability, Springer, vol. 10(4), pages 867-902, October.
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    Cited by:

    1. Hideto Nakashima & Piotr Graczyk, 2022. "Wigner and Wishart ensembles for sparse Vinberg models," Annals of the Institute of Statistical Mathematics, Springer;The Institute of Statistical Mathematics, vol. 74(3), pages 399-433, June.

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