Advances in Fractional Initial and Boundary Value Problems

A special issue of Fractal and Fractional (ISSN 2504-3110). This special issue belongs to the section "General Mathematics, Analysis".

Deadline for manuscript submissions: 1 August 2025 | Viewed by 798

Special Issue Editors


E-Mail Website
Guest Editor
Department of Mathematics, King Abdulaziz University, Jeddah, Saudi Arabia
Interests: boundary value problems; ordinary & partial differential equations; fractional differential equations; analytical and numerical methods for nonlinear problems; methods of functional analysis; stability theory; applications in energy problems; ecology; fluid mechanics; acoustic scattering; disease models
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Mathematics, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand
Interests: differential equations; boundary value problems; nonlinear analysis applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The importance of initial and boundary value problems for different kinds of fractional differential equations (ordinary, partial, difference, functional, stochastic, integral, integro-differential, etc.) is well recognized in view of their extensive applications in applied sciences and engineering.

Single-valued and multi-valued initial and boundary value problems involving different kinds of boundary conditions have attracted significant attention during the last few decades. The literature on this topic is now more enriched and contains a variety of results ranging from existence theory to the methods of solutions for such problems. The techniques of functional analysis and fixed-point theory play a key role in proving the existence and uniqueness of solutions to these problems.

The aim of this Special Issue is to strengthen the available literature on the topic by publishing research and review articles on initial and boundary value problems of differential equations and inclusions in a broader sense.

Potential topics include but are not limited to the following:

Existence, uniqueness, and multiplicity results for initial and boundary value problems for differential equations and inclusions (ordinary, functional, fractional, partial, difference, stochastic, integral, etc.).

Also, please feel free to read and download all the published articles in our first volume:
https://www.mdpi.com/journal/fractalfract/special_issues/boundary_value

Prof. Dr. Sotiris K. Ntouyas
Prof. Dr. Bashir Ahmad
Prof. Dr. Jessada Tariboon
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fractal and Fractional is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • qualitative properties of the solutions (positivity, oscillation, asymptotic behavior, stability, etc.)
  • topological methods in differential equations and inclusions
  • approximation of the solutions
  • eigenvalue problems
  • variational methods
  • fixed point theory
  • critical point theory
  • applications to real-world phenomena

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

21 pages, 370 KiB  
Article
A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
by Bashir Ahmad, Hafed A. Saeed and Sotiris K. Ntouyas
Fractal Fract. 2025, 9(4), 229; https://doi.org/10.3390/fractalfract9040229 - 4 Apr 2025
Viewed by 270
Abstract
We discuss the existence criteria and Ulam–Hyers stability for solutions to a nonlocal integral boundary value problem of nonlinear coupled Hilfer–Hadamard-type fractional Langevin equations. Our results rely on the Leray–Schauder alternative and Banach’s fixed point theorem. Examples are included to illustrate the results [...] Read more.
We discuss the existence criteria and Ulam–Hyers stability for solutions to a nonlocal integral boundary value problem of nonlinear coupled Hilfer–Hadamard-type fractional Langevin equations. Our results rely on the Leray–Schauder alternative and Banach’s fixed point theorem. Examples are included to illustrate the results obtained. Full article
(This article belongs to the Special Issue Advances in Fractional Initial and Boundary Value Problems)
11 pages, 269 KiB  
Article
A Fractional Dirac System with Eigenparameter-Dependent and Transmission Conditions
by Abdullah Kablan and Fulya Şahantürk
Fractal Fract. 2025, 9(4), 227; https://doi.org/10.3390/fractalfract9040227 - 3 Apr 2025
Viewed by 220
Abstract
This work investigates the fractional Dirac system that has transmission conditions, and its boundary condition contains an eigenparameter. Defining a convenient inner product space and a new operator that has the same eigenvalues as the considered problem, we demonstrate that the fractional Dirac [...] Read more.
This work investigates the fractional Dirac system that has transmission conditions, and its boundary condition contains an eigenparameter. Defining a convenient inner product space and a new operator that has the same eigenvalues as the considered problem, we demonstrate that the fractional Dirac system is symmetric in this space. Thus, we have reached some remarkable results for the spectral characteristics of the operator. Furthermore, in the next section of the study, the existence of solutions was examined. Full article
(This article belongs to the Special Issue Advances in Fractional Initial and Boundary Value Problems)
Back to TopTop