# Questions tagged [matrices]

Questions where the notion matrix has an important or crucial role (for the latter, note the tag matrix-theory for potential use). Matrices appear in various parts of mathematics, and this tag is typically combined with other tags to make the general subject clear, such as an appropriate top-level tag ra.rings-and-algebras, co.combinatorics, etc. and other tags that might be applicable. There are also several more specialized tags concerning matrices.

**7**

**3**answers

### Number of matrices with bounded products of rows and columns

**5**

**1**answer

### Inequality involving tensor product of orthonormal unit vectors

**2**

**0**answers

### Is there literature on the study of “eigenmatrices”?

**1**

**1**answer

### Rank and edges in a combinatorial graph?

**3**

**0**answers

### Approximate inverse of large sparse matrix

**0**

**0**answers

### Submatrix of uniform distribution on Stiefel manifold

**1**

**2**answers

### How many numbers in the matrix?

**1**

**0**answers

### Is this function quasi-concave?

**1**

**1**answer

### Probability that random Bernoulli matrix is full rank

**3**

**1**answer

### Differentiability of operator norm [on hold]

**4**

**0**answers

### Row rank and column rank of matrix with entries in a commutative ring

**0**

**0**answers

### How to derive formula (10) norm to obtain formula (11) in Uncorrelated Group LASSO?

**7**

**2**answers

### $2$-norm distance between square roots of matrices

**3**

**0**answers

### A combinatorial / geometric interpretation of compositional inversion via matrix inversion

**0**

**1**answer