Fractional Differentiation and Applied Mathematics: Recent Advances and Applications

A special issue of Axioms (ISSN 2075-1680). This special issue belongs to the section "Mathematical Analysis".

Deadline for manuscript submissions: 31 May 2026 | Viewed by 955

Special Issue Editors


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Guest Editor
1. Department of Mathematics and Computer Sciences, Faculty of Science, Necmettin Erbakan University, 42090 Meram, Konya, Turkey
2. Centre for Environmental Mathematics, Faculty of Environment, Science and Economy, University of Exeter, Penryn TR10 9FE, Cornwall, UK
3. Department of Applied Mathematics and Informatics, Kyrgyz-Turkish Manas University, Bishkek, Kyrgyzstan
Interests: applied mathematics; fractional calculus and applications; mathematical biology; mathematical modelling; optimal control and applications
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Guest Editor
Department of Mathematics, Faculty of Arts and Sciences, Balıkesir University, Balıkesir 10145, Turkey
Interests: mathematical biology; optimal control; fractional calculus; nonlinear programming; continuous optimization

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Guest Editor
Department of Applied Mathematics and Informatics, Kyrgyz-Turkish Manas University, Bishkek, Kyrgyzstan
Interests: differential algebraic equations; mathematical physics; numerical analysis; mathematical modelling; fractional calculus; optimal control and applications

Special Issue Information

Dear Colleagues,

The field of fractional differentiation and applied mathematics has witnessed remarkable growth in recent years due to its wide range of theoretical developments and practical applications. From modeling complex systems in physics and engineering to solving real-world problems in finance, fractional calculus and advanced mathematical methods have become powerful tools for researchers and practitioners.

This Special Issue aims to provide a unified platform for researchers to present state-of-the-art developments in both the theoretical foundations and applied aspects of fractional differentiation, as well as related mathematical techniques. We particularly welcome high-quality contributions that advance the mathematical theory around this topic, propose novel computational methods, or demonstrate impactful applications of fractional differentiation across scientific and engineering domains.

Topics of interest include, but are not limited to, the following:

  • Fractional calculus: Theory, methods, and applications;
  • Differential equations and dynamical systems;
  • Control theory and optimization methods;
  • Stochastic and computational modeling techniques;
  • Applications in the fields of physics, engineering, finance, or medicine.

Selected high-quality papers, including extended versions of works presented at The First International Conference on Mathematics and Applied Data Science (ICMADS’25), as well as independent submissions not associated with the conference, are invited to contribute to this Special Issue.  Our goal is to provide a comprehensive platform for recent developments, fostering collaboration among researchers worldwide and opening new directions for future research.

Prof. Dr. Mehmet Yavuz
Prof. Dr. Fırat Evirgen
Prof. Dr. Ercan Celik
Guest Editors

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Keywords

  • applied mathematics
  • mathematical modeling
  • fractional calculus
  • nonlinear dynamical systems
  • control theory
  • financial mathematics

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Published Papers (2 papers)

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Research

11 pages, 622 KB  
Article
Simple Two-Sided Convergence Method for a Special Boundary Value Problem with Retarded Argument
by Arzu Aykut, Ercan Çelik and İsrafil Okumuş
Axioms 2025, 14(12), 867; https://doi.org/10.3390/axioms14120867 - 26 Nov 2025
Viewed by 290
Abstract
This study utilizes approximation techniques to address a boundary value problem involving a differential equation with a delayed argument. The problem is approached through analytical techniques by transforming it firstly into an equivalent integral equation. Specifically, we derive a Fredholm–Volterra integral equation that [...] Read more.
This study utilizes approximation techniques to address a boundary value problem involving a differential equation with a delayed argument. The problem is approached through analytical techniques by transforming it firstly into an equivalent integral equation. Specifically, we derive a Fredholm–Volterra integral equation that encapsulates the delayed behavior inherent in the original differential equation. The Fredholm operator in this equation features a degenerate kernel, which enables simplification and facilitates the construction of successive approximations. To solve this integral equation, we employ the two-sided convergence method, a powerful iterative technique that generates two sequences of approximate solutions—lower and upper bounds—that converge monotonically toward the exact solution. This method is particularly well-suited for problems with delayed arguments, as it ensures both stability and convergence under appropriate conditions on the kernel functions. The main objective of the study is to demonstrate the applicability and accuracy of the Simple Two-Sided Convergence Method for this class of boundary value problems. A numerical example is presented to illustrate the theoretical results, and the obtained approximations are compared with the exact analytical solution. All computations were carried out using Maple, ensuring precise numerical evaluation. Full article
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23 pages, 463 KB  
Article
The Existence and Uniqueness of Mild Solutions for Fuzzy Hilfer Fractional Evolution Equations with Non-Local Conditions
by Kholoud N. Alharbi and Sanaa Alotaibi
Axioms 2025, 14(11), 855; https://doi.org/10.3390/axioms14110855 - 20 Nov 2025
Viewed by 310
Abstract
In this paper, we investigate a fuzzy Hilfer fractional evolution equation of type 0<β<1 and order 1<α<2 subject to nonlocal conditions. Using the infinitesimal generator of a strongly continuous cosine family, we define a mild [...] Read more.
In this paper, we investigate a fuzzy Hilfer fractional evolution equation of type 0<β<1 and order 1<α<2 subject to nonlocal conditions. Using the infinitesimal generator of a strongly continuous cosine family, we define a mild solution for the proposed system. The existence and uniqueness of such mild solutions are established through Schauder’s fixed-point theorem and the Banach contraction principle. An illustrative application to a fuzzy fractional wave equation is presented to demonstrate the effectiveness of the developed approach. The main contribution of this study lies in the unified treatment of fuzzy Hilfer fractional evolution equations under nonlocal conditions, which generalizes and extends several existing results and provides a solid analytical foundation for modeling systems with memory and uncertainty. Full article
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