New posts in linear-algebra

What is the difference between Eigenvectors and the Kernel or Null Space of a matrix?

Why is a positive definite matrix needed in the ellipsoid matrix representation?

linear-algebra matrices analytic-geometry

Proving that a symmetric matrix is positive definite iff all eigenvalues are positive

linear-algebra matrices eigenvalues-eigenvectors diagonalization

What is the formulation of linear transform from $\mathbb{R}^{m \times n} \to \mathbb{R}^{p}$

linear-algebra linear-transformations

Compute Jordan Form of the following matrix

linear-algebra matrices jordan-normal-form

Direct sum and determinant

linear-algebra vector-spaces linear-transformations determinant

Why can a vector from an infinite-dimensional vector space be written as finite linear combination?

linear-algebra vector-spaces

Matrices with eigenvalues 0 and 1

calculus linear-algebra matrices eigenvalues-eigenvectors

Origin of the modern definition of the tensor product

linear-algebra abstract-algebra commutative-algebra math-history tensor-products

Help with proving that the transpose of the product of any number of matrices is equal to the product of their transposes in reverse

linear-algebra matrices transpose

Normal but not hermitian nor unitary

linear-algebra matrices

Orthogonal projection matrix

linear-algebra matrices

Writing a vector space as a direct product of T-irreducible subspaces

linear-algebra abstract-algebra vector-spaces representation-theory

Group G Preserving a Flag is Solvable

linear-algebra group-theory vector-spaces infinite-groups solvable-groups

Find eigenvalue of $B= I + A^{-1}+A^{-2}+A^{-3}+...$

linear-algebra sequences-and-series matrices eigenvalues-eigenvectors matrix-calculus

Matrix Spectral Radius and Induced Matrix Norms

linear-algebra matrices eigenvalues-eigenvectors matrix-norms spectral-radius

If $U$ commutes with $H$, can we say if U also commutes with $H^\dagger$?

Let $A$ be a $2 \times 2$ matrix such that $A^2=I$. Find trace and determinant

linear-algebra matrices eigenvalues-eigenvectors determinant trace

Prove concurrency of triangle altitudes with vector algebra?

linear-algebra geometry

Rank of matrix AB when A and B have full rank

linear-algebra matrices transformation