Estimation of Covariance Matrices in Unbalanced Random and Mixed Multivariate Models
M Wesolowska-Janczarek · Biometrical Journal · 1984
Abstract Three HENDERSON'S Methods of estimating the variance components are generalized from one to p variables using a compact matrix notation. These results are obtained using a generalized Kronecker product of matrices, generalized trace of order p and a generalized quadratic form.