Recent questions tagged trace-of-matrix

Let $B=\left(\left(b_{i, j}\right)\right)$ be an $n \times n$ matrix. Let $p:\{1,2, \ldots, n\} \mapsto\{1,2, \ldots, n\}$ be a bijection (i.e. a one-to-one corresponde...

Consider the collection $\mathcal{C}$ of all possible $n \times n$ matrices with entries in $\{1, \ldots, n\}$ that obey the following property: every row of $M$ is a per...