Hook Multiplication in the Quantum K-Theory of Grassmannians

Fuente: arXiv
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Auteur principal: Hamlin, Joy
Format: Preprint
Publié: 2026
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author Hamlin, Joy
author_facet Hamlin, Joy
contents We study the quantum K-theory ring $QK(X)$ of a Grassmannian $X$ and prove a manifestly positive formula for the product of an arbitrary class by a hook class. This generalizes the quantum K-theoretic Pieri rule, a prior result of Buch and Mihalcea. We also present a combinatorial interpretation of this result.
format Preprint
id arxiv_https___arxiv_org_abs_2601_08038
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Hook Multiplication in the Quantum K-Theory of Grassmannians
Hamlin, Joy
Combinatorics
Algebraic Geometry
14N35 (primary) 05E14, 14M15, 14N10, 14N15, 19E08 (secondary)
We study the quantum K-theory ring $QK(X)$ of a Grassmannian $X$ and prove a manifestly positive formula for the product of an arbitrary class by a hook class. This generalizes the quantum K-theoretic Pieri rule, a prior result of Buch and Mihalcea. We also present a combinatorial interpretation of this result.
title Hook Multiplication in the Quantum K-Theory of Grassmannians
topic Combinatorics
Algebraic Geometry
14N35 (primary) 05E14, 14M15, 14N10, 14N15, 19E08 (secondary)
url https://arxiv.org/abs/2601.08038