A jeu de taquin theory for increasing tableaux, with applications to K-theoretic Schubert calculus

H Thomas, A Yong - Algebra & Number Theory, 2009 - msp.org
We introduce a theory of jeu de taquin for increasing tableaux, extending fundamental work
of Schützenberger (1977) for standard Young tableaux. We apply this to give a new …

A web basis of invariant polynomials from noncrossing partitions

R Patrias, O Pechenik, J Striker - Advances in Mathematics, 2022 - Elsevier
The irreducible representations of symmetric groups can be realized as certain graded
pieces of invariant rings, equivalently as global sections of line bundles on partial flag …

[HTML][HTML] Cyclic sieving of increasing tableaux and small Schröder paths

O Pechenik - Journal of Combinatorial Theory, Series A, 2014 - Elsevier
An increasing tableau is a semistandard tableau with strictly increasing rows and columns. It
is well known that the Catalan numbers enumerate both rectangular standard Young …

Crystal structures for symmetric Grothendieck polynomials

C Monical, O Pechenik, T Scrimshaw - Transformation Groups, 2021 - Springer
The symmetric Grothendieck polynomials representing Schubert classes in the K theory of
Grassmannians are generating functions for semistandard set-valued tableaux. We …

Poset edge densities, nearly reduced words, and barely set-valued tableaux

V Reiner, BE Tenner, A Yong - Journal of Combinatorial Theory, Series A, 2018 - Elsevier
In certain finite posets, the expected down-degree of their elements is the same whether
computed with respect to either the uniform distribution or the distribution weighting an …

Genomic tableaux

O Pechenik, A Yong - Journal of Algebraic Combinatorics, 2017 - Springer
We explain how genomic tableaux [Pechenik–Yong'15] are a semistandard complement to
increasing tableaux [Thomas–Yong'09]. From this perspective, one inherits genomic …

Crystal structures for canonical Grothendieck functions

G Hawkes, T Scrimshaw - Algebraic Combinatorics, 2020 - alco.centre-mersenne.org
We give a Uq (sln)-crystal structure on multiset-valued tableaux, hook-valued tableaux, and
valued-set tableaux, whose generating functions are the weak symmetric, canonical, and …

Dual filtered graphs

R Patrias, P Pylyavskyy - Algebraic Combinatorics, 2018 - alco.centre-mersenne.org
We define a K-theoretic analogue of Fomin's dual graded graphs, which we call dual filtered
graphs. The key formula in the definition is DU− UD= D+I. Our major examples are K …

Shifted Hecke insertion and the K-theory of OG (n, 2n+ 1)

Z Hamaker, A Keilthy, R Patrias, L Webster… - Journal of Combinatorial …, 2017 - Elsevier
Patrias and Pylyavskyy introduced shifted Hecke insertion as an application of their theory of
dual filtered graphs. We study shifted Hecke insertion, showing it preserves descent sets …

Identities in plactic, hypoplactic, sylvester, Baxter, and related monoids

AJ Cain, A Malheiro - arXiv preprint arXiv:1611.04151, 2016 - arxiv.org
This paper considers whether non-trivial identities are satisfied by certainplactic-
like'monoids that, like the plactic monoid, are closely connected to combinatorics. New …