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arXiv 1902.02745math.FA
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超可微函数空间中的实Paley-Wiener定理

Real Paley-Wiener theorems in spaces of ultradifferentiable functions

Chiara Boiti, David Jornet, Alessandro Oliaro

AI总结:

本文在超可微函数类及其相关L^p空间中建立实Paley-Wiener定理,利用Gabor变换、Fourier变换和Wigner变换给出多变量情形下的完整刻画,并讨论了非紧支撑时用多项式处理的相关结果。

摘要:

我们本着Bang和Andersen对Schwartz类的研究精神,为超可微函数类 ${\mathcal S}_ω$ 及相关的 $L^{p}$-空间建立了实Paley-Wiener定理。我们针对所谓的Gabor变换引入了此类结果,并在这个一般框架下,用多个变量的Fourier变换和Wigner变换给出了Paley-Wiener定理的完整刻画,这在文献中是新的。我们还利用多项式分析了当函数的支撑集非紧时的这类结果。文中给出了一些例子。

英文摘要:

We develop real Paley-Wiener theorems for classes ${\mathcal S}_ω$ of ultradifferentiable functions and related $L^{p}$-spaces in the spirit of Bang and Andersen for the Schwartz class. We introduce results of this type for the so-called Gabor transform and give a full characterization in terms of Fourier and Wigner transforms for several variables of a Paley-Wiener theorem in this general setting, which is new in the literature. We also analyze this type of results when the support of the function is not compact using polynomials. Some examples are given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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