[HTML][HTML] K-theoretic analogues of factorial Schur P-and Q-functions

T Ikeda, H Naruse - Advances in Mathematics, 2013 - Elsevier
We introduce two families of symmetric functions generalizing the factorial Schur P-and Q-
functions due to Ivanov. We call them K-theoretic analogues of factorial Schur P-and Q …

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 …

Resonance in orbits of plane partitions and increasing tableaux

K Dilks, O Pechenik, J Striker - Journal of Combinatorial Theory, Series A, 2017 - Elsevier
We introduce a new concept of resonance on discrete dynamical systems. This concept
formalizes the observation that, in various combinatorially-natural cyclic group actions, orbit …

K-theory of minuscule varieties

AS Buch, MJ Samuel - Journal für die reine und angewandte …, 2016 - degruyter.com
Abstract Based on Thomas and Yong's K-theoretic jeu de taquin algorithm, we prove a
uniform Littlewood–Richardson rule for the K-theoretic Schubert structure constants of all …

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 …

Doppelgängers: bijections of plane partitions

Z Hamaker, R Patrias, O Pechenik… - International …, 2020 - academic.oup.com
We say two posets are doppelgängers if they have the same number of P-partitions of each
height k. We give a uniform framework for bijective proofs that posets are doppelgängers by …

Pieri rules for the K-theory of cominuscule Grassmannians

AS Buch, V Ravikumar - Journal für die reine und angewandte …, 2012 - degruyter.com
We prove Pieri formulas for the multiplication with special Schubert classes in the K-theory of
all cominuscule Grassmannians. For Grassmannians of type A this gives a new proof of a …

Combinatorial formulas for shifted dual stable Grothendieck polynomials

J Lewis, E Marberg - Forum of Mathematics, Sigma, 2024 - cambridge.org
Combinatorial formulas for shifted dual stable Grothendieck polynomials Page 1 Forum of
Mathematics, Sigma (2024), Vol. 12:e22 1–45 doi:10.1017/fms.2024.8 RESEARCH ARTICLE …

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 …