On power sums of matrices over a finite commutative ring

P. Fortuny, J. M. Grau, A. M. Oller-Marcén +1

In this paper we deal with the problem of computing the sum of the $k$-th powers of all the elements of the matrix ring ${\mathbb{M}}_d(R)$ with $d>1$ and $R$ a finite commutative ri…