The local geometry of idempotent Schur multipliers

A Schur multiplier is a linear map on matrices which acts on its entries by multiplication with some function, called the symbol. We consider idempotent Schur multipliers, whose symbols are indicator functions of smooth Euclidean domains. Given \(1

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Veröffentlicht in:	arXiv.org 2024-04
Hauptverfasser:	Parcet, Javier, de la Salle, Mikael, Tablate, Eduardo
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Sprache:	eng
Schlagworte:	Fourier transforms Hilbert transformation Lie groups Mathematical analysis Matrices (mathematics) Multipliers
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description	A Schur multiplier is a linear map on matrices which acts on its entries by multiplication with some function, called the symbol. We consider idempotent Schur multipliers, whose symbols are indicator functions of smooth Euclidean domains. Given \(1
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subjects	Fourier transforms Hilbert transformation Lie groups Mathematical analysis Matrices (mathematics) Multipliers
title	The local geometry of idempotent Schur multipliers
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