2 problems

Let $N_{\rm min}(\ell,d,\varrho)$ denote the smallest number of function values needed by a cubature formula of degree $\ell$ in dimension $d$ for a symmetric weight function…

Let $d$ be the dimension, let $Q_n$ be Frolov's cubature rule with $n$ points, and let $e(Q_n,\mathring{{\mathbf{F}}}_{1,\theta}^{1})$ denote its worst-case integration error on th…