Complex generalized representation of gamma function leading to the distributional solution of a singular fractional integral equation

Tassaddiq, Asifa and Srivastava, Rekha and Md Kasmani, Ruhaila and Alharbi, Rabab (2023) Complex generalized representation of gamma function leading to the distributional solution of a singular fractional integral equation. Axioms, 12 (11). ISSN 2075-1680, DOI https://doi.org/10.3390/axioms12111046.

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Abstract

Firstly, a basic question to find the Laplace transform using the classical representation of gamma function makes no sense because the singularity at the origin nurtures so rapidly that Gamma ze-sz cannot be integrated over positive real numbers. Secondly, Dirac delta function is a linear functional under which every function f is mapped to f(0). This article combines both functions to solve the problems that have remained unsolved for many years. For instance, it has been demonstrated that the power law feature is ubiquitous in theory but challenging to observe in practice. Since the fractional derivatives of the delta function are proportional to the power law, we express the gamma function as a complex series of fractional derivatives of the delta function. Therefore, a unified approach is used to obtain a large class of ordinary, fractional derivatives and integral transforms. All kinds of q-derivatives of these transforms are also computed. The most general form of the fractional kinetic integrodifferential equation available in the literature is solved using this particular representation. We extend the models that were valid only for a class of locally integrable functions to a class of singular (generalized) functions. Furthermore, we solve a singular fractional integral equation whose coefficients have infinite number of singularities, being the poles of gamma function. It is interesting to note that new solutions were obtained using generalized functions with complex coefficients.

Item Type: Article
Funders: Majmaah University [Grant No: ICR-2023-785]
Uncontrolled Keywords: Fractional Taylor series; H-function; Singular integral equation; q-fractional derivatives; 33CXX
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Science > Institute of Mathematical Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 03 Nov 2025 02:39
Last Modified: 03 Nov 2025 02:39
URI: http://eprints.um.edu.my/id/eprint/48593

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