List questions from block-matrices

Published on 11 Dec 2020 - 11:51

420

Views

SVD of “almost” block diagonal matrix

Published on 12 Dec 2020 - 8:38

685

Views

The Schur complement is matrix concave

Published on 26 Mar 2026 - 12:51

77

Views

If $A$ and $B$ are commuting matricies, does the basis of $B$ block diagonalise $A$?

Published on 17 Dec 2020 - 15:20

328

Views

How can I show that 0 is not an eigenvalue of the Hamiltonian matrix?

Published on 18 Dec 2020 - 20:58

48

Views

Explicit form of a diagonal perturbed block 'one' matrix.

Published on 21 Dec 2020 - 10:42

26

Views

Relating the Entries of a Block Operator Matrix to Compositions of Projections

Published on 21 Dec 2020 - 19:47

222

Views

Block Diagonal Polynomial and Inverse

Published on 22 Dec 2020 - 13:06

67

Views

SVD decomposition of diagonal matrix $A = \begin{pmatrix}0 & C^T \\ C & 0 \end{pmatrix}$

Published on 28 Dec 2020 - 17:24

103

Views

Spectral radius of a block matrix with a block that has spectral radius larger than 1

Published on 26 Mar 2026 - 21:10

284

Views

Determinant of associated real matrix from a complex one

Published on 13 Jan 2021 - 20:43

481

Views

Eigenvalues of a 2x2 block matrix with invertible diagonal blocks

Published on 14 Jan 2021 - 15:27

516

Views

Diagonalizing a block diagonal matrix

Published on 15 Jan 2021 - 23:35

28

Views

$\text{diag}(M^t,\ldots,M^t)=[\text{diag}(M,\ldots,M)]^t$ with $t$ is real and $M$ is a positive operator

Published on 18 Jan 2021 - 6:30

22

Views

How to construct a matrix with one dimension nullspace?

Published on 28 Mar 2026 - 0:27

List Question

Prove that a given block matrix is symmetric indefinite

SVD of “almost” block diagonal matrix

The Schur complement is matrix concave

If $A$ and $B$ are commuting matricies, does the basis of $B$ block diagonalise $A$?

How can I show that 0 is not an eigenvalue of the Hamiltonian matrix?

Explicit form of a diagonal perturbed block 'one' matrix.

Relating the Entries of a Block Operator Matrix to Compositions of Projections

Block Diagonal Polynomial and Inverse

SVD decomposition of diagonal matrix $A = \begin{pmatrix}0 & C^T \\ C & 0 \end{pmatrix}$

Spectral radius of a block matrix with a block that has spectral radius larger than 1

Determinant of associated real matrix from a complex one

Eigenvalues of a 2x2 block matrix with invertible diagonal blocks

Diagonalizing a block diagonal matrix

$\text{diag}(M^t,\ldots,M^t)=[\text{diag}(M,\ldots,M)]^t$ with $t$ is real and $M$ is a positive operator

How to construct a matrix with one dimension nullspace?

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