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Spherical symmetry: An elementary justification

  • Morris L. Eaton
  • Sandra Fortini
  • Eugenio Regazzini
Article

Summary

The present paper includes characterizations of the conditions of spherical symmetry and of centered spherical symmetry. These characterizations provide an empirical justification for the above mentioned conditions of symmetry.

Keywords

exchangeability [centered] spherical symmetry mixture of normal laws 

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Copyright information

© Società Italiana di Statistica 1993

Authors and Affiliations

  • Morris L. Eaton
    • 1
  • Sandra Fortini
    • 2
  • Eugenio Regazzini
    • 3
  1. 1.School of StatisticsUniversity of MinnesotaMinneapolisUSA
  2. 2.CNR-IAMIMilanoItaly
  3. 3.Università «L. Bocconi»MilanoItaly

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