Preconditioning of two-by-two block matrix systems with square matrix blocks, with applications

Owe Axelsson

Skip to main content (access key 's'), Skip to navigation (access key 'n'), Accessibility information (access key '0')

The search session has expired. Please query the service again.

Displaying similar documents to “Preconditioning of two-by-two block matrix systems with square matrix blocks, with applications”

A generalization of the diagonal theorem on a block-matrix

E. Pap (1974)

Matematički Vesnik

Similarity:

Block diagonalization

Jaromír J. Koliha (2001)

Mathematica Bohemica

Similarity:

We study block diagonalization of matrices induced by resolutions of the unit matrix into the sum of idempotent matrices. We show that the block diagonal matrices have disjoint spectra if and only if each idempotent matrix in the inducing resolution double commutes with the given matrix. Applications include a new characterization of an eigenprojection and of the Drazin inverse of a given matrix.