Lattice polytopes and semigroup algebras: Generic Lefschetz properties and Parseval-Rayleigh identities

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Main Authors: Adiprasito, Karim Alexander, Papadakis, Stavros Argyrios, Petrotou, Vasiliki
Format: Preprint
Published: 2025
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author Adiprasito, Karim Alexander
Papadakis, Stavros Argyrios
Petrotou, Vasiliki
author_facet Adiprasito, Karim Alexander
Papadakis, Stavros Argyrios
Petrotou, Vasiliki
contents We study semigroup algebras associated to lattice polytopes. We begin by generalizing and refining work of Hochster, and describe the volume maps of these algebras, that is, their fundamental classes, in terms of Parseval-Rayleigh identities and differential equations, which we prove to be equivalent. We use these descriptions to establish strong Lefschetz properties. A consequence is the resolution of several conjectures concerning unimodality properties of the h*-polynomial of lattice polytopes.
format Preprint
id arxiv_https___arxiv_org_abs_2509_14152
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Lattice polytopes and semigroup algebras: Generic Lefschetz properties and Parseval-Rayleigh identities
Adiprasito, Karim Alexander
Papadakis, Stavros Argyrios
Petrotou, Vasiliki
Combinatorics
Commutative Algebra
Algebraic Geometry
We study semigroup algebras associated to lattice polytopes. We begin by generalizing and refining work of Hochster, and describe the volume maps of these algebras, that is, their fundamental classes, in terms of Parseval-Rayleigh identities and differential equations, which we prove to be equivalent. We use these descriptions to establish strong Lefschetz properties. A consequence is the resolution of several conjectures concerning unimodality properties of the h*-polynomial of lattice polytopes.
title Lattice polytopes and semigroup algebras: Generic Lefschetz properties and Parseval-Rayleigh identities
topic Combinatorics
Commutative Algebra
Algebraic Geometry
url https://arxiv.org/abs/2509.14152