The Solvability of a Class of Convolution Equations Associated with 2D FRFT

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Titel: The Solvability of a Class of Convolution Equations Associated with 2D FRFT
Autoren: Zhen-Wei Li, Wen-Biao Gao, Bing-Zhao Li
Quelle: Mathematics ; Volume 8 ; Issue 11 ; Pages: 1928
Verlagsinformationen: Multidisciplinary Digital Publishing Institute
Publikationsjahr: 2020
Bestand: MDPI Open Access Publishing
Schlagwörter: fractional Fourier transform, convolution theorem, solvability, convolution integral equation
Beschreibung: In this paper, the solvability of a class of convolution equations is discussed by using two-dimensional (2D) fractional Fourier transform (FRFT) in polar coordinates. Firstly, we generalize the 2D FRFT to the polar coordinates setting. The relationship between 2D FRFT and fractional Hankel transform (FRHT) is derived. Secondly, the spatial shift and multiplication theorems for 2D FRFT are proposed by using this relationship. Thirdly, in order to analyze the solvability of the convolution equations, a novel convolution operator for 2D FRFT is proposed, and the corresponding convolution theorem is investigated. Finally, based on the proposed theorems, the solvability of the convolution equations is studied.
Publikationsart: text
Dateibeschreibung: application/pdf
Sprache: English
Relation: C1: Difference and Differential Equations; https://dx.doi.org/10.3390/math8111928
DOI: 10.3390/math8111928
Verfügbarkeit: https://doi.org/10.3390/math8111928
Rights: https://creativecommons.org/licenses/by/4.0/
Dokumentencode: edsbas.A6DDAE8C
Datenbank: BASE
Beschreibung
Abstract:In this paper, the solvability of a class of convolution equations is discussed by using two-dimensional (2D) fractional Fourier transform (FRFT) in polar coordinates. Firstly, we generalize the 2D FRFT to the polar coordinates setting. The relationship between 2D FRFT and fractional Hankel transform (FRHT) is derived. Secondly, the spatial shift and multiplication theorems for 2D FRFT are proposed by using this relationship. Thirdly, in order to analyze the solvability of the convolution equations, a novel convolution operator for 2D FRFT is proposed, and the corresponding convolution theorem is investigated. Finally, based on the proposed theorems, the solvability of the convolution equations is studied.
DOI:10.3390/math8111928