3 problems

Positivity rigidity conjecture. Then $p_0\geq 0$, and for $m=1,2,\ldots,s+1$,

Let $s\geq 2$, and let $\widehat{R}_{s/s,3}$ denote the maximal radius of absolute monotonicity in the restricted rational-function class used by the paper. Third-order diagonal ra…

Let $m,n\in\mathbb{N}^+$, and let $R_{m/n,2}$ denote the maximal radius of absolute monotonicity among rational functions with numerator degree at most $m$, denominator degree at m…