An example concerning Fourier analytic criteria for translational tiling

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Abstract

It is well known that the functions f ∊ L1(Rd) whose translates along a lattice Λ form a tiling, can be completely characterized in terms of the zero set of their Fourier transform. We construct an example of a discrete set Λ ⊂ R (a small perturbation of the integers) for which no characterization of this kind is possible: there are two functions f; g ∊ L1(R) whose Fourier transforms have the same set of zeros, but such that f + Λ is a tiling while g + Λ is not.

Original languageEnglish
Pages (from-to)1975-1991
Number of pages17
JournalRevista Matematica Iberoamericana
Volume38
Issue number6
DOIs
StatePublished - 2022

Bibliographical note

Publisher Copyright:
© 2021 Real Sociedad Matemática Española Published by EMS Press.

Funding

Funding. Research supported by ISF Grant No. 227/17 and ERC Starting Grant No. 713927.

FundersFunder number
European Commission713927
Israel Science Foundation227/17

    Keywords

    • Fourier transform
    • Tiling
    • distributions
    • spectral synthesis
    • translates

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