Sparse Spectral Methods for Solving High-Dimensional and Multiscale Elliptic PDEs

Gross, Craig; Iwen, Mark

doi:10.1007/s10208-024-09649-8

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2024

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Novel approach by shifted Schröder polynomials for solving the fractional Bagley-Torvik equation

Yassin,

Aly,

Atta

2024

Phys. Scr.

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This work is dedicated to proposing a spectral tau solution for the fractional Bagley-Torvik equation (FBTE). The suggested solution is stated as a sum of basis functions, which are selected to be the Schröder polynomials (SPs). By applying the proposed spectral tau approach, we derive a system of linear equations, and we solve it approximatively by applying the Gauss elimination method. The error analysis is analyzed in detail. Additionally, numerical comparisons with other methods found in the literature are conducted. The numerical results validate the suggested method's accuracy, computational efficiency, and ease of use.

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