List questions from symmetric-matrices

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quadratic form inequality for SPD matrices

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Skew-symmetric matrices and invariants

Published on 16 Apr 2026 - 3:19

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Eigenvalues of a $20 \times 20$ symmetric matrix

Published on 11 Apr 2026 - 6:19

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Symmetric $S$ in $S^{-1}AS = A^T$

Published on 13 Apr 2026 - 9:28

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Determining if a symmetric matrix is positive definite

Published on 10 May 2026 - 21:27

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Show that all the conics o tangential in $[1,0,0]$ on the line $x_1=0$, is a 3D subspace of $\mathbb{P}(Sym_{\mathbb{R}}(3))$

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63

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SVD of $H^TXH$ with SVD of $X$ known

Published on 10 May 2026 - 17:17

48

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What are the conditions for the existence of a special orthogonal similarity transformation?

Published on 12 Apr 2026 - 12:28

218

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Upper bound for spectral radius of matrix multiplications

Published on 04 May 2026 - 8:45

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How is this a linear matrix inequality?

Published on 29 Apr 2026 - 12:43

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Unit norm eigenvectors of a symmetric matrix

Published on 15 Apr 2026 - 15:21

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Find a positive-definite scalar product for which $F:\mathbb{R^3}\to \mathbb{R^3}$ is symmetrical

Published on 15 Apr 2026 - 9:06

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Diagonal elements of a symmetric matrix and positive definiteness

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Adding matrices to their transpose

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List Question

Representing antisymmetric matrix in block diagonal form?

quadratic form inequality for SPD matrices

Skew-symmetric matrices and invariants

Eigenvalues of a $20 \times 20$ symmetric matrix

Symmetric $S$ in $S^{-1}AS = A^T$

Determining if a symmetric matrix is positive definite

Show that all the conics o tangential in $[1,0,0]$ on the line $x_1=0$, is a 3D subspace of $\mathbb{P}(Sym_{\mathbb{R}}(3))$

SVD of $H^TXH$ with SVD of $X$ known

What are the conditions for the existence of a special orthogonal similarity transformation?

Upper bound for spectral radius of matrix multiplications

How is this a linear matrix inequality?

Unit norm eigenvectors of a symmetric matrix

Find a positive-definite scalar product for which $F:\mathbb{R^3}\to \mathbb{R^3}$ is symmetrical

Diagonal elements of a symmetric matrix and positive definiteness

Adding matrices to their transpose

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