The Solutions of Partial Differential Equations and Recent Applications, 2nd Edition

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

Deadline for manuscript submissions: closed (23 July 2023) | Viewed by 2027

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Department of Mathematics and Statistics, Universiti Putra Malaysia, Serdang, 43400 Selangor, Malaysia
Interests: integral transforms and special functions; generalized functions; generalized hypergeometric functions; distributions; ultra-distributions; topological semigroups, fractional integro-differential equations; fractals and fractional inequalities; fuzzy soft sets and applications in decision making
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Special Issue Information

Dear Colleagues,

Partial differential equations with fractional and integer orders have been applied in many modeling problems. They are inspired by the problems that arise in diverse fields such as biology, finance, physics, differential geometry, control theory, as well as engineering. Furthermore, the formulations of theorems that describe the initial value and boundary value problems are of particular interest to PDE. Here, we consider the wide range of applications, including some physical applications—in particular, the fractional form of the advection–dispersion equation—and the fundamental solution in the form of the Lévy α-stable distribution density among the important applications of fractional modeling. In this Special Issue, we aim to cover the recent developments of the typical models, to generalize the known standard problems, and to replace classical terms with fractional forms.

Dr. Adem Kilicman
Guest Editor

Manuscript Submission Information

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Keywords

  • linear and quasi-linear PDEs
  • classification of PDEs
  • ill-posed and well-posed problems
  • Dirichlet and Neumann problems in PDEs
  • maximum principles
  • fractional modeling and PDEs

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Published Papers (2 papers)

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15 pages, 856 KiB  
Article
Existence and Global Asymptotic Behavior of Positive Solutions for Superlinear Singular Fractional Boundary Value Problems
by Entesar Aljarallah and Imed Bachar
Fractal Fract. 2023, 7(7), 527; https://0-doi-org.brum.beds.ac.uk/10.3390/fractalfract7070527 - 3 Jul 2023
Cited by 2 | Viewed by 579
Abstract
In this paper, we provide sufficient conditions for the existence, uniqueness and global behavior of a positive continuous solution to some nonlinear Riemann-Liouville fractional boundary value problems. The nonlinearity is allowed to be singular at the boundary. The proofs are based on perturbation [...] Read more.
In this paper, we provide sufficient conditions for the existence, uniqueness and global behavior of a positive continuous solution to some nonlinear Riemann-Liouville fractional boundary value problems. The nonlinearity is allowed to be singular at the boundary. The proofs are based on perturbation techniques after reducing the considered problem to the equivalent Fredholm integral equation of the second kind. Some examples are given to illustrate our main results. Full article
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9 pages, 289 KiB  
Brief Report
Maximum Principle for Nonlinear Fractional Differential Equations with the Hilfer Derivative
by Abu Bakr Elbukhari, Zhenbin Fan and Gang Li
Fractal Fract. 2023, 7(7), 515; https://0-doi-org.brum.beds.ac.uk/10.3390/fractalfract7070515 - 29 Jun 2023
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Abstract
In this paper, two significant inequalities for the Hilfer fractional derivative of a function in the space ACγ([0,b],Rn), 0γ1 are obtained. We first verified the extremum [...] Read more.
In this paper, two significant inequalities for the Hilfer fractional derivative of a function in the space ACγ([0,b],Rn), 0γ1 are obtained. We first verified the extremum principle for the Hilfer fractional derivative. In addition, we estimated the Hilfer derivative of a function at its extreme points. Furthermore, we derived and proved a maximum principle for a nonlinear Hilfer fractional differential equation. Finally, we analyzed the solutions of a nonlinear Hilfer fractional differential equation. Our results generalize and extend some obtained theorems on this topic. Full article
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