2026/9/15
Asghar Rahimi

Asghar Rahimi

Academic rank: Professor
ORCID:
Education: PhD.
ResearchGate:
Faculty: Faculty of Basic Sciences
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E-mail: asgharrahimi [at] yahoo.com
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Research

Title
LINEAR CANONICAL WAVELET FRAMES AND THEIR STABILITY
Type
JournalPaper
Keywords
Canonical Wavelet, Frame, Stability, Linear Canonical Transform, Unimodular Matrix.
Year
2024
Journal Applied and Computational Mathematics
DOI 10.30546/1683-6154.23.2.2024.159
Researchers Firdous Ahmad Shah ، Aajaz A Teali ، Asghar Rahimi

Abstract

The aim of this study is to address this issue by constructing a novel family of wavelets in L 2 (R) based on the linear canonical transform having certain extra degrees of freedom. At the outset, we present a necessary condition and three sufficient conditions for the canonical wavelet system { ψ H ma0,nb0 (t) : m, n ∈ Z, H = (A, B, C, D) } to be a frame for L 2 (R) without any decay assumptions on the generator of the system. Secondly, we show that under certain assumptions, a canonical wavelet frame remains a frame in L 2 (R) when the generator of the wavelet frame ψ or the dilation and translation parameters a0 and b0 are perturbed.