Colloquium: Nir Lev (Bar Ilan University) - Fourier quasicrystals

By a Fourier quasicrystal we mean a pure point measure in R^d, whose Fourier transform is also a pure point measure. This notion was inspired by the experimental discovery of quasicrystalline materials in the middle of 80's. The classical example of such a measure comes from Poisson's summation formula. Which other measures of this type may exist? I will give the relevant background on this problem and present our recent results obtained in joint work with Alexander Olevskii.

Date: 

Thu, 09/11/2017 - 14:30 to 15:30

Location: 

Manchester Building (Hall 2), Hebrew University Jerusalem