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Some Conditions and Perturbation Theorem of Irregular Wavelet/Gabor Frames in Sobolev Space

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  • Hui-Min Liu
  • Yu Tian
  • Ding-Xuan Zhou

Abstract

Due to its potential applications in image restoration and deep convolutional neural networks, the study of irregular frames has interested some researchers. This paper addresses irregular wavelet systems (IWSs) and irregular Gabor systems (IGSs) in Sobolev space HsR. We obtain the sufficient and necessary conditions for IWS and IGS to be frames. By applying these conditions, we also derive the characterizations of IWS and IGS to be frames. Finally, we discuss the perturbation theorem of irregular wavelet frames (IWFs) and irregular Gabor frames (IGFs). We also provided some examples to support our results.

Suggested Citation

  • Hui-Min Liu & Yu Tian & Ding-Xuan Zhou, 2024. "Some Conditions and Perturbation Theorem of Irregular Wavelet/Gabor Frames in Sobolev Space," Journal of Mathematics, Hindawi, vol. 2024, pages 1-19, May.
    • Handle: RePEc:hin:jjmath:9932668
    DOI: 10.1155/2024/9932668
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