On trilinear singular Brascamp-Lieb integrals

Fuente: arXiv
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Auteurs principaux: Becker, Lars, Durcik, Polona, Lin, Fred Yu-Hsiang
Format: Preprint
Publié: 2024
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author Becker, Lars
Durcik, Polona
Lin, Fred Yu-Hsiang
author_facet Becker, Lars
Durcik, Polona
Lin, Fred Yu-Hsiang
contents We classify all trilinear singular Brascamp-Lieb forms, completing the classification in the two dimensional case by Demeter and Thiele in arXiv:0803.1268. We use known results in the representation theory of finite dimensional algebras, namely the classification of indecomposable representations of the four subspace quiver. Our classification lays out a roadmap for achieving bounds for all degenerate higher dimensional bilinear Hilbert transforms. As another step towards this goal, we prove new bounds for a particular class of forms that arises as a natural next candidate from our classification. We further prove conditional bounds for forms associated with mutually related representations. For this purpose we develop a method of rotations that allows us to decompose any homogeneous $d$-dimensional singular integral kernel into $(d-1)$-dimensional kernels on hyperplanes.
format Preprint
id arxiv_https___arxiv_org_abs_2411_00141
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On trilinear singular Brascamp-Lieb integrals
Becker, Lars
Durcik, Polona
Lin, Fred Yu-Hsiang
Classical Analysis and ODEs
42B20, 42B15
We classify all trilinear singular Brascamp-Lieb forms, completing the classification in the two dimensional case by Demeter and Thiele in arXiv:0803.1268. We use known results in the representation theory of finite dimensional algebras, namely the classification of indecomposable representations of the four subspace quiver. Our classification lays out a roadmap for achieving bounds for all degenerate higher dimensional bilinear Hilbert transforms. As another step towards this goal, we prove new bounds for a particular class of forms that arises as a natural next candidate from our classification. We further prove conditional bounds for forms associated with mutually related representations. For this purpose we develop a method of rotations that allows us to decompose any homogeneous $d$-dimensional singular integral kernel into $(d-1)$-dimensional kernels on hyperplanes.
title On trilinear singular Brascamp-Lieb integrals
topic Classical Analysis and ODEs
42B20, 42B15
url https://arxiv.org/abs/2411.00141