The Group Involutory Matrix of the Combinations of Two Idempotent Matrices.
Lingling WuXiaoji LiuYaoming YuPublished in: J. Appl. Math. (2012)
Keyphrases
- singular value decomposition
- coefficient matrix
- matrix representation
- projection matrices
- positive definite
- square matrices
- singular values
- perturbation theory
- linear algebra
- data matrix
- lie group
- eigenvalues and eigenvectors
- sparse matrix
- covariance matrix
- projection matrix
- rows and columns
- block diagonal
- systems of linear equations
- symmetric positive definite
- symmetric matrices
- correlation matrix
- measurement matrix
- positive semidefinite
- linear complementarity problem
- distance matrix
- pseudo inverse
- covariance matrices
- low rank and sparse
- sparse matrices
- low rank matrix approximation
- data sets
- matrix completion
- symmetric matrix
- geometrical interpretation
- linear systems