3 problems

Let $\Gamma$ be the relevant cone, let $F$ be the function on $\Gamma$, and let $\mathcal R$ denote its central ray. The identity matrix is denoted by $I$. Central Ray Hypothesis (…

Let $G=(V,E)$ be a finite bipartite graph. For $x\in(-1,1)$, let $\tau(G,x)=\det(\Sigma(G,x))$, where $\Sigma(G,x)$ is the unique positive-definite matrix with diagonal entries $1$…

Let $G=(V,E)$ be a finite graph. For $x otin(-1,1)$? [sic] the paper defines $tau(G,x)=det(Sigma(G,x))$, where $Sigma(G,x)$ is the unique positive-definite matrix with diagonal ent…