Homeomorphic changes of variable and Fourier multipliers

Vladimir Lebedev*, Alexander Olevskii

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We consider the algebras Mp of Fourier multipliers and show that for every bounded continuous function f on Rd there exists a self-homeomorphism h of Rd such that the superposition f∘h is in Mp(Rd) for all p, 1<p<∞. Moreover, under certain assumptions on a family K of continuous functions, one h will suffice for all f∈K. A similar result holds for functions on the torus Td. This may be contrasted with the known solution of Luzin's problem related to the Wiener algebra.

Original languageEnglish
Article number123502
JournalJournal of Mathematical Analysis and Applications
Volume481
Issue number2
DOIs
StatePublished - 15 Jan 2020

Keywords

  • Fourier multipliers
  • Superposition operators

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