2 papers
math.CO2024
Enumerating Permutations Avoiding Split Patterns 3|12 and 23|1
Travis Grigsby, Edward Richmond
In this paper, we give a formula for the number of permutations that avoid the split patterns and with respect to a position . Such permutations count the number o…
math.CO2023
Demazure product of permutations and hopping
Tina Li, Suho Oh, Edward Richmond +2
The Demazure product (also goes by the name of 0-Hecke product or the greedy product) is an associative operation on Coxeter groups with interesting properties and important applic…