A meshless method for the variable-order time fractional telegraph equation

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Gharian d.; MAALEK GHAINI F.M.; HEYDARI M.H.

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Journal: JOURNAL OF MATHEMATICAL EXTENSION Year:2019 | Volume:13 | Issue:3 Page(s): 35-56

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Title

A meshless method for the variable-order time fractional telegraph equation

Author(s)

Gharian d. | MAALEK GHAINI F.M. | HEYDARI M.H. | Issue Writer Certificate

Keywords

Radial basis functions (RBFs)

Variable-order derivatives

Fractional differential equations

Multi quadratic functions (MQ)

Abstract

In this paper, the radial basis functions (RBFs) method is used for solving a class of variable-order time fractional telegraph equation (V-TFTE), which appears extensively in various fields of science and engineering. Fractional derivatives based on Caputo's fractional derivative as a function of the independent variable are defined of order $1<\alpha(x, t)\leq2$. The proposed method combines the radial basis functions and finite difference scheme to produce a semi-discrete algorithm. In the first stage the variable-order time-dependent derivative is discreticized, and then we approximate the solution by the radial basis functions. The aim of this paper is to show that the collocation method based on RBFs is suitable for the treatment of the variable-order fractional partial differential equations. The efficiency and accuracy of the proposed method are shown for some concrete examples. The results reveal that the proposed method is very efficient and accurate.

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APA: Copy

Gharian, d., MAALEK GHAINI, F.M., & HEYDARI, M.H.. (2019). A meshless method for the variable-order time fractional telegraph equation. JOURNAL OF MATHEMATICAL EXTENSION, 13(3), 35-56. SID. https://sid.ir/paper/739825/en

Vancouver: Copy

Gharian d., MAALEK GHAINI F.M., HEYDARI M.H.. A meshless method for the variable-order time fractional telegraph equation. JOURNAL OF MATHEMATICAL EXTENSION[Internet]. 2019;13(3):35-56. Available from: https://sid.ir/paper/739825/en

IEEE: Copy

d. Gharian, F.M. MAALEK GHAINI, and M.H. HEYDARI, “A meshless method for the variable-order time fractional telegraph equation,” JOURNAL OF MATHEMATICAL EXTENSION, vol. 13, no. 3, pp. 35–56, 2019, [Online]. Available: https://sid.ir/paper/739825/en

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