Open AccessAB-wavelet frames in L2(Rn)
Author(s) -
H. M. Srivástava,
Firdous A. Shah
Publication year - 2019
Publication title -
filomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 34
eISSN - 2406-0933
pISSN - 0354-5180
DOI - 10.2298/fil1911587s
Subject(s) - wavelet , mathematics , context (archaeology) , frame (networking) , frame work , realm , pure mathematics , fourier transform , mathematical analysis , artificial intelligence , theoretical physics , computer science , paleontology , telecommunications , physics , political science , law , biology
In order to provide a unified treatment for the continuum and digital realm of multivariate data, Guo, Labate, Weiss and Wilson [Electron. Res. Announc. Amer. Math. Soc. 10 (2004), 78-87] introduced the notion of AB-wavelets in the context of multiscale analysis. We continue and extend their work by studying the frame properties of AB-wavelet systems {DADBTk??(k ? Zn; 1 <? ? <? L)}in L2(Rn). More precisely, we establish four theorems giving su_cient conditions under which the AB-wavelet system constitutes a frame for L2(Rn). The proposed conditions are stated in terms of the Fourier transforms of the generating functions.