$M$ and $N$ are matrices that satisfy $MNMN=0$,what can we say about $NMNM$.
136448
$ABAB=0_{n\times n}$, then must $BABA$ be $0_{n\times n}$?
123808
How would I solve the following problem involving elementary matrices?
120867
How prove this two symmetric matrices $AB=0$
78852
If $\gcd(m,n) =1, $ then $m\mathbb{Z}/ mn\mathbb{Z} \cong \mathbb{Z}/(n)$
124685
How to show $(mn)!$ is divisible by $(m!)^n$?
11620
Is it true that any matrix in $M_2(\mathbb R)$ is the sum of two squares?
69542
Why do the $n \times n$ non-singular matrices form an "open" set?
34520
Is $0\,\mathrm{m}$ dimensionless?
57771
Let $A\in M_{n\times n}(\Bbb R)$ so that $I\notin span(A,A^2,...,A^n)$. Prove that $\det(A)=0$.
113169
Number of $\pm 1$ matrices whose determinant is negative or zero
562
Formula for calculating $\sum_{n=0}^{m}nr^n$
73697
Let $A, B$ be $n\times n$ with $n\ge 2$ nonsingular matrices with real entries such that $A^{-1} + B^{-1} =(A+B)^{-1}$
52882
find nonsingular matrices $B$ and $C$ that satisfy $BC+ CB= 0$
111951
Prove $\binom{n}{m}\binom{m}{k} = \binom{n}{k}\binom{n-k}{m-k}$
102707
Why square matrix with zero determinant have non trivial solution
146046
Are two matrices having the same characteristic and minimal polynomial always similar?
122580
If N is elementary nilpotent matrix, show that N Transpose is similar to N