Level algebras and $\boldsymbol{s}$-lecture hall polytopes
Abstract
Given a family of lattice polytopes, a common endeavor in Ehrhart theory is the classification of those polytopes in the family that are Gorenstein, or more generally level. In this article, we consider these questions for -lecture hall polytopes, which are a family of simplices arising from -lecture hall partitions. In particular, we provide concrete classifications for both of these properties purely in terms of -inversion sequences. Moreover, for a large subfamily of -lecture hall polytopes, we provide a more geometric classification of the Gorenstein property in terms of its tangent cones. We then show how one can use the classification of level -lecture hall polytopes to construct infinite families of level -lecture hall polytopes, and to describe level -lecture hall polytopes in small dimensions.
Keywords
Cite
@article{arxiv.1710.10892,
title = {Level algebras and $\boldsymbol{s}$-lecture hall polytopes},
author = {Florian Kohl and McCabe Olsen},
journal= {arXiv preprint arXiv:1710.10892},
year = {2020}
}
Comments
Final version, to appear in Electronic Journal of Combinatorics