Alexander Diaz-Lopez

A proof of the peak polynomial positivity conjecture

We say that a permutation

Peak sets of classical Coxeter groups

\pi=\pi_1\pi_2\cdots \pi_n \in \mathfrak{S}_n

The number of permutations with the same peak set for signed permutations

has a peak at index

Number of permutations with same peak set for signed permutations

i

Po-Shen Loh Interview

if

William Stein interview

\pi_{i-1} \pi_{i+1}

Anthony V 'arilly-Alvarado Interview

. Let

Sharon Arroyo Interview

\mathcal{P}(\pi)

Ryan Hynd interview

denote the set of indices where

Interview with Chelsea Walton

\pi