New posts in Inverse

Show that $A$ is diagonalisable when $P(A)$ is diagonalisable and $P'(A)$ is invertible

Inverse of a matrix and matrix relation

Why does definition of the inverse of a matrix involves having $AB=I=BA$?

Does $(X'X)^{-1}$ always exist?

Inverse of block anti-diagonal matrix

What is the most efficient way to find the inverse of large matrix?

A subring may have a different identity,why?

Invertibility of elements in $A[x]$ with coefficients in the Jacobson radical

Jordan matrix of $A$ and $A^{-1}$

When should I take conjugate transpose of a complex matrix, and when transpose of it?