Strictness of the log-concavity of generating polynomials of matroids

Satoshi Murai, Takahiro Nagaoka, Akiko Yazawa

Recently, it was proved by Anari-Oveis Gharan-Vinzant, Anari-Liu-Oveis Gharan-Vinzant and Brändén-Huh that, for any matroid $M$, its basis generating polynomial and its independent…