In this paper we consider estimating the rank of an unknown symmetric matrix based on a symmetric, asymptotically normal estimator of the matrix. The related positive definite limit covariance matrix ...

A flexible method is introduced to model the structure of a covariance matrix C and study the dependence of the covariances on explanatory variables by observing that for any real symmetric matrix A, ...

CBSE Class 12th: Matrices – Matrix Polynomial In this video we will learn about integral power of a matrix, matrix polynomial, symmetric matrix and skew-symmetric matrix.