1 problem

Let $d,k,L\in\mathbb{N}$, let $p_{1},\dots,p_{k}\colon\mathbb{Z}^{L}\to\mathbb{Z}^{d}$ be polynomials, and let $(X,\mathcal{B},\mu,(T_{g})_{g\in\mathbb{Z}^{d}})$ be a…