Fractional multiwavelet methods for solving spatiotemporal fractional diffusion equations with non-smooth solutions

This introduces a new method that effectively solves spatiotemporal fractional diffusion equation(FDE) using fractional Lagrange interpolation and fractional multiwavelets. The method effectively addresses situations with non-smooth solutions. The approach begins by discretizing the time variable t...

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Bibliographic Details
Main Authors: Jian Zhang, Chaoyue Guan, Hong Du
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2025-07-01
Series:Mathematical Modelling and Analysis
Subjects:
Online Access:https://journals.vilniustech.lt/index.php/MMA/article/view/22650
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Summary:This introduces a new method that effectively solves spatiotemporal fractional diffusion equation(FDE) using fractional Lagrange interpolation and fractional multiwavelets. The method effectively addresses situations with non-smooth solutions. The approach begins by discretizing the time variable t using the fractional piecewise parabolic Lagrange interpolation method. For the spatial variables, we construct fractional multiwavelets. Through the least residue method, we obtain approximate solutions, while also conducting convergence analysis. Numerical demonstrations validate the high accuracy achieved by the proposed method, notably showcasing the better approximation capability of fractional polynomials compared to their integer counterparts.
ISSN:1392-6292
1648-3510