On the set partitions that require maximum sorts through the $aba-$avoiding stack

Yunseo Choi, Katelyn Gan, Andrew Li +1

Recently, Xia introduced a deterministic variation $\ddot{I}{•}_{\ddot{I}}ƒ$ of Defant and Kravitz's stack-sorting maps for set partitions and showed that any set partition $p$ is sorted by $ϕ^{N(p…