Abstract
For an expansive matrix A, which preserves the lattice \({\mathbb{Z}}^{n}\) i.e. \({\text{A}}{\mathbb{Z}}^{n}\subset {\mathbb{Z}}^{n}\), we provide characterization for multiframe wavelet set in \({\mathbb{R}}^{n}\). We also obtain necessary condition for a set \(\mathrm{G }\subset {\mathbb{R}}^{n}\) to be frame scaling set for expansive matrix A. By taking frame scaling set \({\text{S}}\) in \({\mathbb{R}}\) and frame wavelet set E in \({\mathbb{R}}\), we have constructed frame wavelet set of the form \(\mathrm{E }\times {\text{S}}\) in \({\mathbb{R}}^{2}\), for a matrix of the form \(\left(\begin{array}{cc}0&\quad 1\\ a&\quad 0\end{array}\right)\), where |a| > 1.
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The second author is thankful to CSIR, India for financial support.
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Author Amita Dwivedi has received research support from CSIR, India, with the File number 09/001(0434)/2019-EMR 1.
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Yadav, G.C.S., Dwivedi, A. A Construction of Multiframe Wavelet Sets in \({\mathbb{R}}^{2}\). Int. J. Appl. Comput. Math 10, 70 (2024). https://doi.org/10.1007/s40819-024-01712-w
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DOI: https://doi.org/10.1007/s40819-024-01712-w
Keywords
- Frame multiresolution analysis (FMRA)
- Frame scaling set
- Multiframe wavelet set
- Normalized tight (NT) frame multiwavelets