Dynamic Systems and Differential Equations

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

Deadline for manuscript submissions: 31 December 2025 | Viewed by 336

Special Issue Editor


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Guest Editor
Division of Applied Mathematics, Brown University, Providence, RI, USA
Interests: partial differential equations; numerical methods; mathematical modelling

Special Issue Information

Dear Colleagues,

It is well known that differential equations are the most successive tools in modeling real-world phenomena and processes, including physics, chemistry, engineering, life sciences, and economics.

Scientists and engineers have come to realize the power and the beauty of the geometric, computational, and qualitative techniques needed for the analysis of differential equations and dynamic systems.

With the availability of computers for the study of differential equations, a number of important nonlinear problems ranging from physics and chemistry to ecology and economics which once seemed completely intractable from an analytic point of view can now be understood in a geometric or qualitative sense rather easily. The chaotic and random behavior of solutions of deterministic systems is now understood to be an inherent feature of many nonlinear systems.

This Special Issue of Axioms deals with differential equations and dynamical systems and their advanced applications. Original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Ordinary differential equations;
  • Partial differential equations;
  • Delay differential equations;
  • Fractional differential equations;
  • Modeling with differential equations;
  • Functional equations;
  • Integral equations and integral transforms;
  • Numerical methods;
  • Ill-posed problems and their regularizations;
  • Dynamical systems on time scales;
  • Difference equations;
  • Chaos.

Prof. Dr. Vladimir A. Dobrushkin
Guest Editor

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Keywords

  • ordinary differential equations
  • partial differential equations
  • delay differential equations
  • fractional differential equations
  • modeling with differential equations
  • functional equations
  • integral equations and integral transforms
  • numerical methods
  • ill-posed problems and their regularizations
  • dynamical systems on time scales
  • difference equations
  • chaos

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Published Papers (1 paper)

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Research

26 pages, 916 KB  
Article
Closed-Form Solutions for a Dynamical System Using Optimal Parametric Iteration Method
by Remus-Daniel Ene, Nicolina Pop and Rodica Badarau
Axioms 2026, 15(1), 1; https://doi.org/10.3390/axioms15010001 (registering DOI) - 19 Dec 2025
Abstract
The vibrations of the dynamical system play an important role in biological processes, electrical engineering, and mechanical structures. In this work, we focus on the behaviors of dynamical systems, such as periodical or damped oscillations and asymptotic behaviors. Theorems for explicitly integrability of [...] Read more.
The vibrations of the dynamical system play an important role in biological processes, electrical engineering, and mechanical structures. In this work, we focus on the behaviors of dynamical systems, such as periodical or damped oscillations and asymptotic behaviors. Theorems for explicitly integrability of the dynamical system are established. The effect of the physical parameters 0<a1, d0 is semi-analytically analyzed by means of the Optimal Parametric Iteration Method (OPIM). We pointed out some cases when the investigated system admits only one first integral or two first integrals. These cases are reduced to a second-order nonlinear differential equations, which are solved by OPIM. The OPIM solutions are highlighted qualitatively by figures and quantitatively by tables, respectively, and are in good agreement with corresponding numerical ones. The accuracy of the obtained results are emphasized by comparison with the iterative solutions, via the classical iterative method and new optimal iterative method, respectively. Other advantages of the applied method are pointed out. Full article
(This article belongs to the Special Issue Dynamic Systems and Differential Equations)
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