Numerical computation of exponential functions in frame of Nabla fractional calculus

Jonnalagadda, Jagan Mohan; Alzabut, Jehad

doi:10.22034/cmde.2022.50918.2119

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	Numerical computation of exponential functions in frame of Nabla fractional calculus
Computational Methods for Differential Equations
مقاله 7، دوره 11، شماره 2، تیر 2023، صفحه 291-302 اصل مقاله (341.7 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22034/cmde.2022.50918.2119
نویسندگان
Jagan Mohan Jonnalagadda¹؛ Jehad Alzabut^* ²^{، 3}
¹Department of Mathematics, Birla Institute of Technology and Science Pilani, Hyderabad - 500078, Telangana, India.
²Department of Mathematics and Sciences, Prince Sultan University, Riyadh 12435, Saudi Arabia.
³Department of Industrial Engineering, OST_IM Technical University, Ankara 06374, Turkiye.
چکیده
Exponential functions play an essential role in describing the qualitative properties of solutions of nabla fractional difference equations. In this article, we illustrate their asymptotic behavior. We know that these functions involve infinite series of ratios of gamma functions, and it is challenging to compute them. For this purpose, we propose a novel matrix technique to compute the addressed functions numerically. The results are supported by illustrative examples. The proposed method can be extended to obtain numerical solutions for non-homogeneous nabla fractional difference equations.
کلیدواژه‌ها
Nabla fractional difference؛ Exponential function؛ Triangular strip matrix؛ General solution؛ Asymptotic behaviour

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Numerical computation of exponential functions in frame of Nabla fractional calculus