If $\vec{v}$ is an eigenvector of $A$, then also $B\vec{v}$, when $AB = BA$
110502
$AB=BA$ with same eigenvector matrix
92744
These two operators commute...but their eigenvectors aren't all the same. Why?
142028
If $\vec{a},\vec{b},\vec{c},\vec{d}$are unit vectors, $(\vec{a}\times\vec{b}).(\vec{c}\times\vec{d})=1$ and $\vec{a}.\vec{c}=\frac{1}{2}$,then
83475
Prove Or Disprove: tr(AB)=tr(A)*tr(B)
93325
Difference In Eigenvectors
150885
$v \otimes v' = v' \otimes v$ implies $v = av'$
106288
Prove that the eigenvalues of a block matrix are the combined eigenvalues of its blocks
133482
$AB-BA$ is a nilpotent matrix if it commutes with $A$
123424
Must eigenvector be real?
51967
Prove that if the sum of each row of $A$ equals $s$, then $s$ is an eigenvalue of $A$.
43570
Finding two non-zero matrices where $AX = BA$
81868
How to prove $\operatorname{Tr}(AB) = \operatorname{Tr}(BA)$?
123555
Proving that if $ab=e$ then $ba=e$
72092
If $A^2 = I$, $B^2=I$ and $(AB)^2=I$, then $AB = BA$
97733
Can it be determined that the sum of the diagonal entries, of matrix A, equals the sum of eigenvalues of A
66709
Are the matrix products $AB$ and $BA$ similar?
128990
Prove that, at least one of the matrices $A+B$ and $A-B$ has to be singular