Is this possible? AB- BA=I
7622
$AB-BA=I$ having no solutions
106986
Eigenvalues of $AB$ and $BA$
37233
Find the condition in which $\angle ADB = 3\angle BAC$
111800
If $a|c$ and $b|d$, is it true that $ab|cd$?
22856
Ways to go from A to B(proof)
88349
Are the eigenvalues of $AB$ equal to the eigenvalues of $BA$? (Citation needed!)
55062
$2\times 2$ matrix $C=AB-BA$
26570
Prove $\operatorname{rank}(AB) = \operatorname{rank}(B)$
102742
order $a$ = 5, $a^3b = ba^3$. show that that $ab = ba$.
133482
$AB-BA$ is a nilpotent matrix if it commutes with $A$
37061
The order of $ab$ when $a,b$ commute
147490
If matrix $AB=A$, does it mean B must be an identity matrix?
18800
If A and B are symmetric is AB=BA true?
84626
Why in these matrices are $AB=BA$ not equal? What is the logic behind them?
43570
Finding two non-zero matrices where $AX = BA$
59397
Eigenvalues of $AB$ and $BA$ where $A$ and $B$ are square matrices
35874
Show that when $BA = I$, the solution of $Ax=b$ is unique