2 problems

Semistable Tutte polynomial positivity conjecture. One has $T_Z(Q;t,q)\in\mathbb{N}[t,q]$. The conjecture is motivated by the positivity theorem for $a_Z(Q)$, and the source sugges…

Exponential positivity conjecture. Then $b_{\boldsymbol{\alpha}}(q)\in\mathbb{N}[q]$ for every $\boldsymbol{\alpha}\in\mathbb{N}^r$. The conjecture was proved by Markus Reineke for…