Invertible matrix with nonnegative entries
124149
Inverse of matrix with nonnegative entries
69509
Showing a Linear Transformation is invertible
97781
invertible matrices connected or not
125021
Inverse of an invertible upper triangular matrix of order 3
25229
Can any set of $n$ relatively prime elements be extended to an invertible matrix?
42467
Inverse of an invertible triangular matrix (either upper or lower) is triangular of the same kind
41813
How to prove positive (semi-)definitness in matrix notation without numbers
73697
Let $A, B$ be $n\times n$ with $n\ge 2$ nonsingular matrices with real entries such that $A^{-1} + B^{-1} =(A+B)^{-1}$
82962
Partial Ordering of Positive Definite Matrices
53863
Making a non-diagonalizable matrix diagonalizable with an small perturbations
61484
Continuously invertible operators
52564
$m\times n$ matrix with an even number of 1s in each row and column
146487
Can a non-square matrix be called "invertible"?
150387
Questions about matrix rank, trace, and invertibility
13723
Doubly stochastic matrix proof
146405
Norm with symmetric positive definite matrix
124942
Prove that an upper triangular matrix is invertible if and only if every diagonal entry is non-zero.