Derangement permutation matrices and orbit harmonics

Yupeng Li, Jasper Liu, Brendon Rhoades

Let ${\mathbf{x}}_{n\times n}$ be an $n\times n$ matrix of variables and let $S=\mathbb{F}[{\mathbf{x}}_{n\times n}]$ be the polynomial ring over these variables where $\mathbb{F}…