Numerical and Exact Methods for Nonlinear Differential Equations and Applications in Physics, 2nd Edition

A special issue of Fractal and Fractional (ISSN 2504-3110). This special issue belongs to the section "Mathematical Physics".

Deadline for manuscript submissions: 1 October 2025 | Viewed by 802

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Department of Mathematics, Faculty of Science, Mersin University, 33110 Mersin, Turkey
Interests: numerical analysis; mathematical physics; partial differential equations; fractional calculus
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Special Issue Information

Dear Colleagues,

Nonlinear differential equations are generally used to create mathematical models of real-life problems and to obtain their solutions. Therefore, many researchers have achieved important results by developing new methods in terms of finding analytical, numerical and exact solutions to nonlinear differential equations. In these studies, the nonlinear differential equations generally discussed include integer and fractional derivatives.

The aim of this Special Issue is to construct and apply analytical, numerical and exact methods for approaching nonlinear differential equations which have applications in the field of physics. In addition, this Special Issue will particularly focus on examining the physical behavior of the obtained results and analyzing them in detail.

Researchers are encouraged to introduce and discuss their new original papers on the solutions to nonlinear differential equations in engineering and applied science. Potential research topics include, but are not limited to, the following themes:

  • Recent advances in fractional calculus;
  • Fractional calculus models in engineering and applied science;
  • Fractional differential and difference equations;
  • Functional fractional differential equations;
  • Computational methods for integer or fractional order PDEs in applied science;
  • Exact solutions to nonlinear physical problems;
  • Numerical methods for initial and boundary value problems;
  • Multiplicative differential equations and their applications;
  • Fuzzy differential equations and their applications;
  • Stochastic differential equations and their applications.

Dr. Yusuf Gürefe
Guest Editor

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Keywords

  • fractional calculus
  • special functions in fractional calculus
  • mathematical modelling in physics
  • nonlinear models in mathematical physics
  • dynamics of physical systems
  • numerical solutions
  • exact solutions
  • soliton theory
  • computational physics
  • multiplicative calculus
  • fuzzy differential calculus
  • stochastic differential equations

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Published Papers (2 papers)

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Research

15 pages, 3455 KiB  
Article
Soliton Solutions and Chaotic Dynamics of the Ion-Acoustic Plasma Governed by a (3+1)-Dimensional Generalized Korteweg–de Vries–Zakharov–Kuznetsov Equation
by Amjad E. Hamza, Mohammed Nour A. Rabih, Amer Alsulami, Alaa Mustafa, Khaled Aldwoah and Hicham Saber
Fractal Fract. 2024, 8(11), 673; https://doi.org/10.3390/fractalfract8110673 - 19 Nov 2024
Viewed by 297
Abstract
This study explores the novel dynamics of the (3+1)-dimensional generalized Korteweg–de Vries–Zakharov–Kuznetsov (KdV-ZK) equation. A Galilean transformation is employed to derive the associated system of equations. Perturbing this system allows us to investigate the presence and characteristics of chaotic behavior, including return maps, [...] Read more.
This study explores the novel dynamics of the (3+1)-dimensional generalized Korteweg–de Vries–Zakharov–Kuznetsov (KdV-ZK) equation. A Galilean transformation is employed to derive the associated system of equations. Perturbing this system allows us to investigate the presence and characteristics of chaotic behavior, including return maps, fractal dimension, power spectrum, recurrence plots, and strange attractors, supported by 2D and time-dependent phase portraits. A sensitivity analysis is demonstrated to show how the system behaves when there are small changes in initial values. Finally, the planar dynamical system method is used to derive anti-kink, dark soliton, and kink soliton solutions, advancing our understanding of the range of solutions admitted by the model. Full article
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20 pages, 6607 KiB  
Article
Investigating the Dynamics of a Unidirectional Wave Model: Soliton Solutions, Bifurcation, and Chaos Analysis
by Tariq Alraqad, Muntasir Suhail, Hicham Saber, Khaled Aldwoah, Nidal Eljaneid, Amer Alsulami and Blgys Muflh
Fractal Fract. 2024, 8(11), 672; https://doi.org/10.3390/fractalfract8110672 - 18 Nov 2024
Viewed by 328
Abstract
The current work investigates a recently introduced unidirectional wave model, applicable in science and engineering to understand complex systems and phenomena. This investigation has two primary aims. First, it employs a novel modified Sardar sub-equation method, not yet explored in the literature, to [...] Read more.
The current work investigates a recently introduced unidirectional wave model, applicable in science and engineering to understand complex systems and phenomena. This investigation has two primary aims. First, it employs a novel modified Sardar sub-equation method, not yet explored in the literature, to derive new solutions for the governing model. Second, it analyzes the complex dynamical structure of the governing model using bifurcation, chaos, and sensitivity analyses. To provide a more accurate depiction of the underlying dynamics, they use quantum mechanics to explain the intricate behavior of the system. To illustrate the physical behavior of the obtained solutions, 2D and 3D plots, along with a phase plane analysis, are presented using appropriate parameter values. These results validate the effectiveness of the employed method, providing thorough and consistent solutions with significant computational efficiency. The investigated soliton solutions will be valuable in understanding complex physical structures in various scientific fields, including ferromagnetic dynamics, nonlinear optics, soliton wave theory, and fiber optics. This approach proves highly effective in handling the complexities inherent in engineering and mathematical problems, especially those involving fractional-order systems. Full article
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