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February 2004 Estimation of proportional covariances in the presene of certain linear restrictions
Soøren Tolver Jensen, Jesper Madsen
Ann. Statist. 32(1): 219-232 (February 2004). DOI: 10.1214/aos/1079120134

Abstract

Proportionality of covariance matrices of n independent p-dimensional normal distributions with the same type of linear restrictions of the inverse covariances is considered. Conditions for existence and uniqueness of the maximum likelihood estimator are obtained through the development of general results for scale-invariant natural exponential families.

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Soøren Tolver Jensen. Jesper Madsen. "Estimation of proportional covariances in the presene of certain linear restrictions." Ann. Statist. 32 (1) 219 - 232, February 2004. https://doi.org/10.1214/aos/1079120134

Information

Published: February 2004
First available in Project Euclid: 12 March 2004

zbMATH: 1105.62348
MathSciNet: MR2051005
Digital Object Identifier: 10.1214/aos/1079120134

Subjects:
Primary: 62H12, 62H15
Secondary: 17C50, 52A20, 60H20, 62F10, 62H10

Rights: Copyright © 2004 Institute of Mathematical Statistics

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Vol.32 • No. 1 • February 2004
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