vol. 28:1, Permutation Patterns 2025

This is a special issue following the 2025 edition of the international conference on Permutation Patterns conference, held in St Andrews, Scotland, July 7-11, 2025.

1. Stack-sorting preimages and 0-1-trees

Bona, Miklos.
We define a class of partially labeled trees and use them to find simple proofs for two recent enumeration results of Colin Defant concerning stack-sorting preimages of permutation classes.
Section: Special issues