$\ell^{p}$ improving estimates for multilinear forms motivated by distance graphs

Fuente: arXiv
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Main Authors: Palsson, Eyvindur, Smucker, Jennifer
Format: Preprint
Published: 2026
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author Palsson, Eyvindur
Smucker, Jennifer
author_facet Palsson, Eyvindur
Smucker, Jennifer
contents We undertake a systematic study of the mapping properties of forms based on distance graphs in $\mathbb{Z}^{d}$ to see how the structure of a graph, $G$, affects the $\ell^{p}$ improving estimates of the form, $Λ_{G}$, based on $G$. This extends previous work on $\ell^{p}$ improving properties for the spherical averaging operator, which corresponds to a distance graph of a single distance. We obtain $\ell^{p}$ improving estimates for the collection of forms based on all graphs with 2, 3, and 4 vertices, as well as chains and simplexes of any size in $\mathbb{Z}^{d}$. Surprisingly, certain mapping properties only seem to depend on the number of vertices in the graph, not its structure, and forms based on subgraphs of a graph, $G$, do not necessarily inherit all mapping properties from $G$.
format Preprint
id arxiv_https___arxiv_org_abs_2605_12439
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle $\ell^{p}$ improving estimates for multilinear forms motivated by distance graphs
Palsson, Eyvindur
Smucker, Jennifer
Classical Analysis and ODEs
Number Theory
We undertake a systematic study of the mapping properties of forms based on distance graphs in $\mathbb{Z}^{d}$ to see how the structure of a graph, $G$, affects the $\ell^{p}$ improving estimates of the form, $Λ_{G}$, based on $G$. This extends previous work on $\ell^{p}$ improving properties for the spherical averaging operator, which corresponds to a distance graph of a single distance. We obtain $\ell^{p}$ improving estimates for the collection of forms based on all graphs with 2, 3, and 4 vertices, as well as chains and simplexes of any size in $\mathbb{Z}^{d}$. Surprisingly, certain mapping properties only seem to depend on the number of vertices in the graph, not its structure, and forms based on subgraphs of a graph, $G$, do not necessarily inherit all mapping properties from $G$.
title $\ell^{p}$ improving estimates for multilinear forms motivated by distance graphs
topic Classical Analysis and ODEs
Number Theory
url https://arxiv.org/abs/2605.12439