2 problems

Let $(\Delta,\nu)$ be a PL realization of an orientable simplicial $\mathbb{R}$-homology $d$-manifold without boundary in $\mathbb{R}^d$, and let $\Psi(\Delta,\nu)$ be its stress a…

Let $\Delta$ be an orientable simplicial $\mathbb{R}$-homology $d$-manifold without boundary, with $H_1(\Delta;\mathbb{Z}/2\mathbb{Z})=0$ whenever $d\geq2$. Let $\Upsilon$ be a sub…