Lattice Paths, Lefschetz Properties, and Almkvist's Conjecture in Two Variables

Fuente: arXiv
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Main Authors: Abdallah, Nancy, McDaniel, Chris
Format: Preprint
Published: 2024
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author Abdallah, Nancy
McDaniel, Chris
author_facet Abdallah, Nancy
McDaniel, Chris
contents We study a certain two-parameter family of non-standard graded complete intersections $A(m,n)$. In case $n=2$, we show that $A(m,2)$ has the strong Lefschetz property and the complex Hodge-Riemann property if and only if $m$ is even. This supports a strengthening of a conjecture of Almkvist on the unimodality of the Hilbert function of $A(m,n)$.
format Preprint
id arxiv_https___arxiv_org_abs_2404_05098
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Lattice Paths, Lefschetz Properties, and Almkvist's Conjecture in Two Variables
Abdallah, Nancy
McDaniel, Chris
Commutative Algebra
13E10, 05A10, 05B20, 11B83, 13H10, 14F45, 15A15, 20F55
We study a certain two-parameter family of non-standard graded complete intersections $A(m,n)$. In case $n=2$, we show that $A(m,2)$ has the strong Lefschetz property and the complex Hodge-Riemann property if and only if $m$ is even. This supports a strengthening of a conjecture of Almkvist on the unimodality of the Hilbert function of $A(m,n)$.
title Lattice Paths, Lefschetz Properties, and Almkvist's Conjecture in Two Variables
topic Commutative Algebra
13E10, 05A10, 05B20, 11B83, 13H10, 14F45, 15A15, 20F55
url https://arxiv.org/abs/2404.05098