Number of $2 \times 2$ matrices over the field with $3$ elements, with determinant $1$
55719
Order of general- and special linear groups over finite fields.
102935
Trace and determinant of composition of a left-multiplication and a right-multiplication on a space of matrices
113907
All nilpotent $2\times 2$ matrices
1865
Sub-determinants of an orthogonal matrix
79031
Determinant of the Kronecker Product of Two Matrices
151526
Determinant of a matrix with different cases for its entries
70092
Determine the number of possible values for $\det(A)$, given that $A$ is an $n \times n$ matrix with real entries such that $A^3 - A^2 -3A +2I=0$.
8627
Number of equivalence classes of $w \times h$ matrices under switching rows and columns
130720
Special linear algebra over finite field with characteristic 3
83747
$2$ out of $3$ property of the unitary group
124467
Can $(X_1,X_2) \cap (X_3,X_4)$ be generated with two elements from $k[X_1,X_2,X_3,X_4]$?
123726
$2\times 2 $ matrices over $\mathbb{C}$ that satisfy $\mathrm A^3=\mathrm A$
153961
Determinant of $2 \times 2$ block matrix with commuting blocks
31326
Number of $(0,1)$ $m\times n$ matrices with no empty rows or columns
52564
$m\times n$ matrix with an even number of 1s in each row and column
156834
Why are there $736$ matrices $M\in \mathcal M_2(\mathbb{Z}_{26})$ for which it holds that $M=M^{-1}$?
22410
Find a symmetric matrix $B$ such that for every $3\times 1$ matrix $\text{x}$