LU factorization of a 2X2 singular matrix
70606
Show that the LU decomposition of matrices of the form $\left[\begin{smallmatrix}0& x\\0 & y\end{smallmatrix}\right]$ is not unique
42427
Understanding linear algebra in Ordinary Least Squares derivation
898
Strictly diagonally dominant matrices are non singular
139087
polar decomposition of a square A when A is not full rank/invertible
20920
Determinant of a block skew-symmetric matrix
38550
2x2 matrices with sum of diagonal entries equal zero
42447
SVD: How to find the columnvector of U corresponding to a singular value equal to zero
22933
Closed-form solution for the determinant of a Vandermonde-like matrix
71231
Determinant of circulant-like matrix
54740
Proofs of Determinants of Block matrices
115385
Computing matrices of linear transformation under different basis
72375
Efficiently Constructing Rank One Approximations for a Matrix using SVD
100429
Proving the Jacobi method converges for diagonally-column dominant matrices
2109
Max dimension of a subspace of singular $n\times n$ matrices
54628
Properties of non-zero symmetric bilinear form
94256
Partial factorization of multivariate polynomials in terms of given polynomials
140910
Solving minimization problem $L_2$ IRLS (Iteration derivation)