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Paper detail

Linear perturbations of the Wigner transform and the Weyl quantization

We study a class of quadratic time-frequency representations that, roughly speaking, are obtained by linear perturbations of the Wigner transform. They satisfy Moyal's formula by default and share many other properties with the Wigner transform, but in general they do not belong to Cohen's class. We provide a characterization of the intersection of the two classes. To any such time-frequency representation, we associate a pseudodifferential calculus. We investigate the related quantization procedure, study the properties of the pseudodifferential operators, and compare the formalism with that of the Weyl calculus.

preprint2019arXivOpen access
Dominik BayerElena CorderoKarlheinz GröchenigS. Ivan Trapasso
math.FA
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Dominik BayerElena CorderoKarlheinz GröchenigS. Ivan Trapasso

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