New posts in symmetric-matrices

Did I just discover a new way to calculate the signature of a matrix?

linear-algebra matrices algebra-precalculus symmetric-matrices matrix-congruences

Let$A$ be a $3\times3$ real symmetric matrix such that $A^6=I$ . Then $A^2=I$

linear-algebra matrices symmetric-matrices

When is a complex symmetric matrix with only the last row and column being non zero diagonalizable?

linear-algebra matrices eigenvalues-eigenvectors diagonalization symmetric-matrices

Signature of Bilinear Form.

linear-algebra symmetric-matrices bilinear-form

Do Real Symmetric Matrices have 'n' linearly independent eigenvectors? [duplicate]

linear-algebra eigenvalues-eigenvectors symmetric-matrices

Maximum number of Q-orthogonal vectors

linear-algebra vectors convex-optimization positive-definite symmetric-matrices

Positive semidefinite cone is generated by all rank-$1$ matrices.

matrices positive-definite symmetric-matrices positive-semidefinite

Is there a formula for the expansion coefficients of powers of an inner product?

linear-algebra polynomials symmetric-matrices multinomial-theorem

Maximizing trace of mixed products of two real symmetric matrices

linear-algebra functional-analysis trace symmetric-matrices random-matrices

Interpretation of Symmetric Normalised Graph Adjacency Matrix?

graph-theory symmetric-matrices adjacency-matrix

If a symmetric PSD matrix has a zero entry on the main diagonal, its determinant is zero

matrices determinant symmetric-matrices positive-semidefinite

Derivative of Symmetric Positive Definite Matrix w.r.t. to its Lower Triangular Cholesky Factor

matrix-calculus matrix-decomposition covariance positive-definite symmetric-matrices

show that symmetric and anti-symmetric matrices are eigenvectors for linear map

linear-algebra matrices linear-transformations diagonalization symmetric-matrices

Determining if a symmetric matrix is positive definite

matrices positive-definite symmetric-matrices positive-semidefinite

Quadratic matrix equation $XAX=B$

matrices quadratics matrix-equations matrix-calculus symmetric-matrices

Over which fields (besides $\mathbb{R}$) is every symmetric matrix potentially diagonalizable?

linear-algebra abstract-algebra finite-fields diagonalization symmetric-matrices

Metric for how symmetric a matrix is

matrices eigenvalues-eigenvectors determinant symmetric-matrices

Is there any intuition why the following matrix is positive semidefinite?

linear-algebra matrices symmetric-matrices positive-semidefinite

Set of symmetric positive semidefinite matrices is a full dimensional convex cone.

matrices symmetric-matrices positive-semidefinite convex-cone

How to prove that $A^2$ is a symmetric matrix?

linear-algebra matrices symmetric-matrices