New posts in symmetric-matrices

Convexity of set $\lambda_{\min}(M) \geq a$ in the space of symmetric matrices

linear-algebra matrices eigenvalues-eigenvectors convex-analysis symmetric-matrices

Inverse of a symmetric positive definite matrix

linear-algebra matrices positive-definite symmetric-matrices

Why is the maximum Rayleigh quotient equal to the maximum eigenvalue?

matrices eigenvalues-eigenvectors symmetric-matrices transpose

Finding eigenvalues in almost tridiagonal matrix

eigenvalues-eigenvectors matrix-decomposition symmetric-matrices tridiagonal-matrices

Postitive definiteness of the Kronecker product of two positive definite matrices

matrices tensor-products positive-definite symmetric-matrices kronecker-product

"we note that the matrix Σ can be taken to be symmetric, without loss of generality"

covariance symmetric-matrices mahalanobis-distance

When is a symmetric matrix invertible?

linear-algebra matrices inverse symmetric-matrices

Can a symmetric matrix become non-symmetric by changing the basis?

linear-algebra matrices symmetric-matrices hermitian-matrices

Bound on eigenvalues of hollow, tridiagonal symmetric matrix

linear-algebra matrices symmetric-matrices gershgorin-sets

Decomposition of a positive semidefinite matrix

matrices matrix-decomposition symmetric-matrices positive-semidefinite

A necessary and sufficient condition for a symmetric matrix to be positive semidefinite in terms of its Schur complement

matrices symmetric-matrices positive-semidefinite block-matrices schur-complement

If matrix is not positive semidefinite then there is $x$ such that $x^T A x < 0$

matrices symmetric-matrices positive-semidefinite

Inverse of symmetric positive definite perturbation of symmetric positive definite matrix

linear-algebra matrices inequality symmetric-matrices perturbation-theory

Eigenvalues of symmetric orthogonal matrix

linear-algebra matrices eigenvalues-eigenvectors symmetric-matrices orthogonal-matrices

Does there exist a symmetric matrix $A$ such that $2^{\sqrt{n}}\le |\operatorname{Tr}(A^n)|\le2020 \ \cdot 2^{\sqrt{n}}$ for all $n$

linear-algebra eigenvalues-eigenvectors trace symmetric-matrices

Does $A^T A$ have complex eigenvalues?

linear-algebra eigenvalues-eigenvectors diagonalization symmetric-matrices orthogonal-matrices

Principal submatrices of a positive definite matrix

linear-algebra matrices positive-definite symmetric-matrices block-matrices

Analyze the symmetric property of positive definite matrices [duplicate]

linear-algebra matrices positive-definite symmetric-matrices

Determinant of symmetric tridiagonal matrices

linear-algebra matrices determinant symmetric-matrices tridiagonal-matrices

Why do positive definite symmetric matrices have the same singular values as eigenvalues?

linear-algebra eigenvalues-eigenvectors svd positive-definite symmetric-matrices