Approximation Solution of the Differential Equation with Fractional Derivatives Using Fuzzy Transformations

Authors

  • Mahboobeh nesari
  • Mohammad Adabitabar Firozja
  • Tofigh Allahviranloo
  • Babak Fazli malidareh
  • Mohsen Rabbani

DOI:

https://doi.org/10.30495/jme.v19i0.3309

Keywords:

Time Fractional Partial Differential Equation, Explicit finite difference, Caputo derivative, Fuzzy transformation.

Abstract

In this research, we consider the real fractional partial differential equation. Many numerical methods for fractional partial differential equations have been presented. In this article, we seek to calculate the continuous approximate solution of the equation, and for this purpose, we use the inverse phase transformation method, which is a new technique for calculating the approximation function using real data. We use the inverse fuzzy transformation method because, firstly, it is convergent, and secondly, to approximate a function in certain intervals, unlike other methods that only use a limited number of points, in this method, all points are used with a degree of accuracy. Space  fractional equation has been discretized using explicit finite difference method using the  space caputo derivative with order 1<a<2. The efficiency of the proposed method is shown by two test problems for various values of t. Tables and graphs are used to describe the results, which ensures that results are in an excellent agreement with analytical solution.

Published

2025-08-02

Issue

Section

Articles