New posts in matrices

How to rotate the positions of a matrix by 90 degrees

matrices matrix-equations

Relationship between eigenvalues of a matrix and its square

Why is this true for matrices? Linearly dependent columns $\implies$ not invertible

linear-algebra matrices

Where does the Jordan canonical form show up in more advanced mathematics?

linear-algebra abstract-algebra matrices jordan-normal-form research

Possible Jordan Canonical Forms Given Minimal Polynomial

linear-algebra abstract-algebra matrices jordan-normal-form

How to prove that exponential kernel is positive definite?

linear-algebra matrices

Smith normal form of a polynomial matrix

matrices polynomials control-theory smith-normal-form

Dimension of vector space of matrices with zero row and column sum.

linear-algebra matrices

How find this matrix $A=(\sqrt{i^2+j^2})$ eigenvalue

linear-algebra matrices quadratic-forms

Prove that if $\operatorname{rank}A=n$, then $\operatorname{rank}AB=\operatorname{rank}B$

linear-algebra matrices matrix-calculus

If a matrix is triangular, is there a quicker way to tell if it is can be diagonalized?

Matrix multiplication notation

linear-algebra matrices notation

$AB \neq 0$ but $BA=0$

abstract-algebra matrices noncommutative-algebra

Compute the derivative of $\mbox{tr}(AXB)$ with respect to $X$

matrices derivatives matrix-calculus trace scalar-fields

What is the relation between the eigenspace of a matrix and its column space?

linear-algebra matrices eigenvalues-eigenvectors

Every complex matrix can be written as the sum of a Hermitian and a skew-Hermitian matrix. What is this called?

terminology linear-algebra matrices

Diagonalized matrix - Is each column an eigenvector?

abstract-algebra matrices vector-spaces eigenvalues-eigenvectors linear-algebra

How to calculate the rank of a matrix?

linear-algebra matrices matrix-rank

Is the characteristic polynomial of a matrix $\det(\lambda I-A)$ or$ \det(A-\lambda I)$?

How to determine if a set of five $2\times2$ matrices is independent

linear-algebra matrices vector-spaces