{numerical-linear-algebra} questions involving algorithms for linear algebra computations.

**2**

**0**answers

### An inequality concerning the solution of a Lyapunov equation

**5**

**1**answer

### Any convergence rule for ${\mathbf X}_k={\mathbf A}{\mathbf X}_{k-1}{\mathbf B}$?

**0**

**1**answer

### Computing spectrum of convex combination of SPD matrices given individual spectral decompositions

**1**

**1**answer

### Lanczos algorithm for finding $k$ smallest eigenvector

**7**

**1**answer

### Is there any sort of higher-order SVD (quadratic and above) for dimensionality reduction?

**4**

**1**answer

### Is there a fast algorithm to test positivity of all principal minors of non-symmetric matrix?

**5**

**1**answer

### Numerical minimization spectral norm under diagonal similarity

**1**

**0**answers

### Calculation of $\chi^2$ for very small covariance matrices

**0**

**0**answers

### Unstable convergence of a Poisson equation

**0**

**1**answer

### Cholesky decomposition – non-positive definite matrix

**10**

**0**answers

### Fast computation of matrix product $AXA^T$ with fixed $A$?

**0**

**0**answers

### Smallest eigenvalue of a sparse matrix (updated)

**7**

**1**answer

### Square root of a large sparse symmetric positive definite matrix

**0**

**0**answers

### Change of polynomial eigenvalues between polynomials

**1**

**1**answer

### Compute the eigenvectors corresponding to the $k$ smallest eigenvalues w.r.t high dimensional symmetric sparse matrix?

**2**

**1**answer

### Efficient algorithm for solving a convex quadratic program [duplicate]

**4**

**1**answer

### Solving a system of linear equations over the integers

**2**

**1**answer

### Numerical iterative methods for Poisson equation

**2**

**1**answer

### Quadratic matrix equation for $X\in \mathbb{C}^{ n\times p}$ with Hermitian parameters

**7**

**3**answers

### Checking positive semi-definiteness of integer matrix

**1**

**0**answers

### Empirical approaches to validate observational bounds on minimum gap between least eigenvalues of $n \times n$ correlation matrix and its submatrices

**2**

**0**answers

### Partitioning $n$-space based on linear combinations

**7**

**2**answers

### Linear equations with absolute values

**4**

**0**answers

### Using Linear Programming as an iterative procedure

**5**

**1**answer

### In a large sparse matrix, how many eigenvalues/eigenvectors are “spurious”?

**4**

**0**answers

### Generate non-negative linear combinations of non-negative vectors with different supports

**1**

**0**answers

### smallest singular value over invertible sub-matrices

**0**

**0**answers

### Conjecture about matrix systems of integer solution sets [duplicate]

**1**

**1**answer

### Laplace equation, medium discontinuity and finite difference method

**7**

**0**answers

### A special eigenvalue problem

**2**

**0**answers

### Coarse grid correction

**4**

**0**answers

### Zero diagonal nonsymmetric block checkerboard matrix: orbits and numerical ranges

**1**

**1**answer

### Solving Linear System with Noisy Input

**1**

**0**answers

### What is the time complexity of the largest singular value and its vectors?

**3**

**1**answer

### Numerically solving for pseudo inverse of non-squared Vandermonde matrix

**0**

**0**answers

### Symmetric positive definite matrix with small condition number

**1**

**1**answer

### Is the square root of a matrix unique? [closed]

**4**

**0**answers

### Determining whether a Schur complement is invertible

**1**

**0**answers

### Condition number of the product of two matrices

**3**

**2**answers

### Lower bounds for the singular values of submatrices of othogonal matrices

**1**

**1**answer

### error bound for least square minimization

**0**

**1**answer

### How to show inconsistency of a linear system of equations? [closed]

**3**

**2**answers

### Question about preconditioning

**3**

**3**answers

### Is this inequality involving the Frobenius norm right?

**8**

**1**answer

### When are two binary matrices simultaneously equivalent to their transpose?

**7**

**2**answers

### How can one construct a sparse null space basis using recursive LU decomposition?

**4**

**1**answer

### minimizing the product of rayleigh quotient

**3**

**1**answer

### Properties of one dimensional null space

**3**

**2**answers

### Matrix equation with Hadamard product and its own inverse involved

**0**

**1**answer