Feature Papers for Mathematical Physics Section 2026

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

Deadline for manuscript submissions: 31 October 2026 | Viewed by 1120

Special Issue Editor

Special Issue Information

Dear Colleagues,

Science is a unique way to understand nature. In order to solve issues in the real world, engineers and experts conduct research to create new tools and determine the characteristics of scientific norms. Such scientific action is required by humanity to address everyday issues. The first phase of this process is to comprehend norms of mathematical physics which makes it feasible to experience the power of science firsthand.

This Special Issue, titled “Feature Papers for Mathematical Physics Section 2026”, aims to publish high-quality papers covering aspects of mathematical physics containing integer or fractional order operators. We welcome submissions from Editorial Board Members and outstanding scholars invited by the Editorial Board and by the Editorial Office.

Prof. Dr. Haci Mehmet Baskonus
Guest Editor

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Keywords

  • engineering problems
  • analytical methods
  • numerical methods
  • computational mathematics
  • nonlinear system and applied in physics
  • information science
  • communications theory
  • bioinformatics
  • health problems
  • networks
  • physics
  • engineering and applied sciences
  • economy
  • statistics
  • fractals
  • fractional calculus
  • nonlinear dynamical systems
  • graph theory
  • statistical learning theory
  • computation topics on energy and environmental science
  • artificial intelligence
  • data science
  • discrete dynamical system

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Published Papers (2 papers)

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16 pages, 1399 KB  
Article
Chaotic and Fractal Evidence from Turkiye’s Macroeconomic System: Chaos-Augmented Phillips Curve
by Melike Elif Bildirici, Merve Çolak and Elçin Aykaç Alp
Fractal Fract. 2026, 10(3), 138; https://doi.org/10.3390/fractalfract10030138 - 25 Feb 2026
Viewed by 322
Abstract
The paper explored the fractal, nonlinear and chaotic dynamics between oil prices, inflation, economic growth and unemployment in Turkiye from 1960 to 2024 and examined how energy market volatility propagated through the macroeconomy via complex, regime-dependent mechanisms. It developed a chaotic regression method [...] Read more.
The paper explored the fractal, nonlinear and chaotic dynamics between oil prices, inflation, economic growth and unemployment in Turkiye from 1960 to 2024 and examined how energy market volatility propagated through the macroeconomy via complex, regime-dependent mechanisms. It developed a chaotic regression method and employed entropy-based measures (Shannon, Rényi and Tsallis), Lyapunov exponents, Lorenz and Rössler attractors, Julia set diagnostics and the chaos Granger causality test (Hiemstra–Jones). By nesting entropy, chaos and causality within a unified framework, it contributed methodological innovations and practical insights to the energy–economy literature. The chaotic regression results revealed that oil price shocks generated asymmetric and nonlinear responses in inflation, unemployment and growth that were characterized by chaos and sensitivity to initial conditions and demonstrated that oil shocks act as catalysts for nonlinear propagation and fractal macroeconomic dynamics. Julia set results determined that unemployment can be explained by inflation fractal size. Hiemstra–Jones method determined unidirectional causality from oil to both inflation, economic growth and unemployment. According to the results, adopting nonlinear and chaos-based modeling approaches is essential to understand the macroeconomic consequences of energy shocks. For policymakers, the evidence determined that the costs of disinflation or inflation control are sensitive to energy market volatility. The paper contributed to the energy–economy-econometrics literature by integrating entropy, chaos and causality analyses into the oil price–macroeconomy nexus by offering both methodological innovations and practical insights. Full article
(This article belongs to the Special Issue Feature Papers for Mathematical Physics Section 2026)
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17 pages, 13236 KB  
Article
Influence of Initial Stress on Wave Propagation in Microelongated Thermo-Elastic Media Under the Refined Fractional Dual Phase Lag Model
by Mohamed F. Ismail, Hamdy M. Ahmed, Taha Radwan, Soliman Alkhatib, M. Elsaid Ramadan and Eslam Nabil Shawki El-Ganzoury
Fractal Fract. 2026, 10(1), 30; https://doi.org/10.3390/fractalfract10010030 - 4 Jan 2026
Cited by 1 | Viewed by 385
Abstract
This paper focuses on analyzing how initial stress influences wave propagation phenomena in a microelongated thermoelastic medium described within the framework of fractional conformable derivative, considering both the dual phase lag (DPL) and refined dual phase lag (RDPL) theories. The fundamental governing equations [...] Read more.
This paper focuses on analyzing how initial stress influences wave propagation phenomena in a microelongated thermoelastic medium described within the framework of fractional conformable derivative, considering both the dual phase lag (DPL) and refined dual phase lag (RDPL) theories. The fundamental governing equations for heat transfer, mechanical motion, and microelongation are established to incorporate finite thermal wave speed and microelongation effects. Through an appropriate non-dimensionalization procedure and the application of the normal mode analysis technique, the coupled partial differential system is transformed into a form that admits explicit analytical solutions. These solutions provide expressions for displacement, microelongation, temperature distribution, and stress components, allowing a comprehensive examination of the thermomechanical wave behavior within the medium. To better comprehend the theoretical results, numerical evaluations are performed to emphasize the comparison of DPL and RDPL in the presence and absence of initial stress, as well as the influence of the fractional-order parameter and different times on wave properties. The results show that initial stress has a considerable effect on wave propagation characteristics such as amplitude modulation, propagation speed, and attenuation rate. Furthermore, the use of fractional conformable derivatives and the RDPL formulation allows for more precise modeling and control of the thermal relaxation dynamics. The current study contributes to a better understanding of the linked microelongated and thermal effects in thermoelastic media, as well as significant insights for designing and modeling advanced microscale thermoelastic systems. Full article
(This article belongs to the Special Issue Feature Papers for Mathematical Physics Section 2026)
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