Wave fronts via Fourier series coefficients
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math.FA
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wavecoefficientsfourierfrontseriesdescriptiondistributiondistributions
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Motivated by the product of periodic distributions, we give a new description of the wave front and the Sobolev-type wave front of a distribution $f\in\mathscr{D}'(\mathbb{R}^d)$ in terms of Fourier series coefficients.
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