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arXiv 1509.02005math.FA
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Gabor框架与Schwartz分布的渐近性态

Gabor frames and asymptotic behavior of Schwartz distributions

Sanja Kostadinova, Katerina Saneva, Jasson Vindas

摘要:

利用Gabor框架,得到了Schwartz分布的渐近性质的刻画.我们的刻画确实是在短期傅里叶变换的窗口生成的Gabor帧的移位渐近(S-渐近)的Tauberian定理。对于它,我们表明,Gabor系数算子提供(拓扑)同构的空间的回火分布$\mathcal{S}'(\mathbb{R}^d)$和指数型分布$\mathcal{K}'_{1}(\mathbb{R}^{d})$到他们的图像。

英文摘要:

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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