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arxiv: 1509.02005 · v2 · pith:XYWVJW7Snew · submitted 2015-09-07 · 🧮 math.FA

Gabor frames and asymptotic behavior of Schwartz distributions

classification 🧮 math.FA
keywords gabordistributionsframesasymptoticcharacterizationsmathbbmathcalschwartz
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We obtain characterizations of asymptotic properties of Schwartz distribution by using Gabor frames. Our characterizations are indeed Tauberian theorems for shift asymptotics (S-asymptotics) in terms of short-time Fourier transforms with respect to windows generating Gabor frames. For it, we show that the Gabor coefficient operator provides (topological) isomorphisms of the spaces of tempered distributions $\mathcal{S}'(\mathbb{R}^d)$ and distributions of exponential type $\mathcal{K}'_{1}(\mathbb{R}^{d})$ onto their images.

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