Katherine Tung

activity

20192025

most citedFormations and generalized Davenport-Schinzel sequences

2 citations · 2 across the 5 of their papers we have counts for

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5 papers · 1 filter

math.CO2025

Chute Move Posets are Lattices

Ilani Axelrod-Freed, Colin Defant, Hanna Mularczyk +2

For each permutation $w$ , we consider the set $PD (w)$ of reduced pipe dreams for $w$ , partially ordered so that cover relations correspond to (generalized) chute moves. Se…

math.CO2024

Oriented matroid structures on rank 3 root systems

Grant Barkley, Katherine Tung

We show that, given a rank 3 affine root system $Φ$ with Weyl group $W$ , there is a unique oriented matroid structure on $Φ$ which is $W$ -equivariant and restricts to the usual mat…

math.CO2023

A bijection between evil-avoiding and rectangular permutations

Katherine Tung

Evil-avoiding permutations, introduced by Kim and Williams in 2022, arise in the study of the inhomogeneous totally asymmetric simple exclusion process. Rectangular permutations, i…

math.CO2020

The Sperner property for $132$ -avoiding intervals in the weak order

Christian Gaetz, Katherine Tung

A well-known result of Stanley from 1980 implies that the weak order on a maximal parabolic quotient of the symmetric group $S_{n}$ has the Sperner property; this same property was r…

math.CO2019★ 2 cited

Formations and generalized Davenport-Schinzel sequences

Jesse Geneson, Peter Tian, Katherine Tung

Let $u p (r, t) = (a_{1} a_{2} \dots a_{r})^{t}$ . We investigate the problem of determining the maximum possible integer $n (r, t)$ for which there exist $2 t - 1$ permutations $π_1, π_2, \dots,…

Chute Move Posets are Lattices

Oriented matroid structures on rank 3 root systems

A bijection between evil-avoiding and rectangular permutations

The Sperner property for 132-avoiding intervals in the weak order

Formations and generalized Davenport-Schinzel sequences

The Sperner property for $132$ -avoiding intervals in the weak order