Helly numbers of Algebraic Subsets of ${\mathbb{R}}^d$

J. A. De Loera, R. N. La Haye, D. Oliveros +1

We study $S$-convex sets, which are the geometric objects obtained as the intersection of the usual convex sets in ${\mathbb{R}}^d$ with a proper subset $S\subset {\mathbb{R}}^d$. We con…