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New variational theory for coupled nonlinear fractal Schrödinger system

KangLe Wang (School of Mathematics and Information Science, Henan Polytechnic University, Jiaozuo, China)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 3 June 2021

Issue publication date: 5 January 2022

88

Abstract

Purpose

The purpose of this paper is the coupled nonlinear fractal Schrödinger system is defined by using fractal derivative, and its variational principle is constructed by the fractal semi-inverse method. The approximate analytical solution of the coupled nonlinear fractal Schrödinger system is obtained by the fractal variational iteration transform method based on the proposed variational theory and fractal two-scales transform method. Finally, an example illustrates the proposed method is efficient to deal with complex nonlinear fractal systems.

Design/methodology/approach

The coupled nonlinear fractal Schrödinger system is described by using the fractal derivative, and its fractal variational principle is obtained by the fractal semi-inverse method. A novel approach is proposed to solve the fractal model based on the variational theory.

Findings

The fractal variational iteration transform method is an excellent method to solve the fractal differential equation system.

Originality/value

The author first presents the fractal variational iteration transform method to find the approximate analytical solution for fractal differential equation system. The example illustrates the accuracy and efficiency of the proposed approach.

Keywords

Acknowledgements

Conflict of Interest: This work does not have any conflicts of interest.

Citation

Wang, K. (2022), "New variational theory for coupled nonlinear fractal Schrödinger system", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 32 No. 2, pp. 589-597. https://doi.org/10.1108/HFF-02-2021-0136

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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