Orthonormal shifted discrete Legendre polynomials for the variable-order fractional extended Fisher–Kolmogorov equation

2022 ◽  
Vol 155 ◽  
pp. 111729
Author(s):  
M. Hosseininia ◽  
M.H. Heydari ◽  
Z. Avazzadeh
2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
M. H. Heydari ◽  
A. Atangana

AbstractThis paper applies the Heydari–Hosseininia nonsingular fractional derivative for defining a variable-order fractional version of the Sobolev equation. The orthonormal shifted discrete Legendre polynomials, as an appropriate family of basis functions, are employed to generate an operational matrix method for this equation. A new fractional operational matrix related to these polynomials is extracted and employed to construct the presented method. Using this approach, an algebraic system of equations is obtained instead of the original variable-order equation. The numerical solution of this system can be found easily. Some numerical examples are provided for verifying the accuracy of the generated approach.


2021 ◽  
pp. 21-21
Author(s):  
Dan-Dan Dai ◽  
Ting-Ting Ban ◽  
Yu-Lan Wang ◽  
Wei Zhang

This paper structures some new reproductive kernel spaces based on Legendre polynomials to solve time variable order fractional advection-reaction-diffusion equations. Some examples are given to show the effectiveness and reliability of the method.


2021 ◽  
Vol 15 (7) ◽  
pp. 347-355
Author(s):  
Xiaoling Liu ◽  
Xuan Liu

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