2 problems

Let $G_{\mathrm{data}} \subseteq G$ act on $M$, and let $\Gamma$ be a continuous boundary whose symmetry group contains $G_{\mathrm{data}}$. For a target precision $\varepsilon>0$,…

Let $X_{0}$ and $X_{1}$ be two sets of points in the Cartesian plane. Assume that no two line segments determined by four distinct points, with exactly two points from one set, int…