Shearlet coorbit spaces and associated Banach frames

Shearlet coorbit spaces and associated Banach frames
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DOI:
10.1016/j.acha.2009.02.004
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发表时间:
2009-09-01
影响因子:
2.5
通讯作者:
Teschke, Gerd
Teschke, Gerd
中科院分区:
数学1区
文献类型:
--
作者:
Dahlke, Stephan;Kutyniok, Gitta;Teschke, Gerd

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在本文中,我们研究了新发展的连续剪切波变换与坐标空间理论的关系。事实证明,剪切波群确实可以满足应用共位空间理论所需的所有条件。因此,我们建立了新的平滑空间族,即剪切力坐标空间。此外,我们的方法以一种非常自然的方式为这些空间生成巴拿赫框架。我们还研究了最佳 n 项近似方案的近似功效并提出了一些初步的数值实验。 (C) 2009 Elsevier Inc. 保留所有权利。
In this paper, we study the relationships of the newly developed continuous shearlet transform with the coorbit space theory. It turns out that all the conditions that are needed to apply the coorbit space theory can indeed be satisfied for the shearlet group. Consequently, we establish new families of smoothness spaces, the shearlet coorbit spaces. Moreover, our approach yields Banach frames for these spaces in a quite natural way. We also study the approximation power of best n-term approximation schemes and present some first numerical experiments. (C) 2009 Elsevier Inc. All rights reserved.