Document Type

Article

Publication Date

2004

DOI

10.1016/j.laa.2003.10.009

Publication Title

Linear Algebra and Its Applications

Volume

388

Pages

379-388

Abstract

Let X be distributed as matrix normal with mean M and covariance matrix WV, where W and V are nonnegative definite (nnd) matrices. In this paper we present a simple version of the Cochran’s theorem for matrix quadratic forms in X. The theorem is used to characterize the class of nnd matrices W such that the matrix quadratic forms that occur in multivariate analysis of variance are independent and Wishart except for a scale factor. © 2003 Elsevier Inc. All rights reserved.

Comments

Web of Science: "Free full-text from publisher -- Elsevier open archive."

© 2003 Elsevier Inc. All rights reserved.

Original Publication Citation

Vaish, A. K., & Chaganty, N. R. (2004). Wishartness and independence of matrix quadratic forms for Kronecker product covariance structures. Linear Algebra and Its Applications, 388, 379-388. doi:10.1016/j.laa.2003.10.009

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