Physical containment is an additional comparison

Let sites be embedded by $z:\Lambda \to {\mathbb{R}}^D$, and let $K\subset {\mathbb{R}}^D$ be a declared compact convex velocity set containing $0$. A dependency edge of displacement $\Delta$ and duration $u>0$ is physically contained when $\Delta \in uK$. A nonzero displacement at duration $0$ is not contained in this future cone.