2023-12

Bulletin of Social Informatics Theory and Application (Issue : 2) (Volume : 7)

This research contributes to the understanding of nonlinear systems of differential equations with operators, specifically in the context of generalizing Volterra and Fredholm integral equations. The use of the Picard approximation method, Banach fixed point theorem, and stability analysis further enhances the analysis of the solutions. The examples provided help to solidify the theoretical findings and highlight their applicability. The outcomes illustrate the efficacy of these tools in envisaging and modelling complex social phenomena. To tackle multifaceted societal challenges, future research in this field should prioritize interdisciplinary collaborations. It is crucial to incorporate empirical data into nonlinear models to validate theoretical findings and enhance practical relevance.

2023-12

Alexandria Engineering Journal (Issue : 86) (Volume : 2024)

This manuscript aims to study the effectiveness of two different levels of fractional orders in the frame of Caputo-Hadamard (ℂℍ)-derivatives on a special type class of delay problem supplemented by Dirichlet boundary conditions. The corresponding Hadamard fractional integral equation is derived for a proposed ℂℍ-fractional pantograph system. The Banach, Schaefer, and Krasnoselskii fixed point theorems (𝔽 ℙ𝕋 𝑠), are used to investigate sufficient conditions of the existence and uniqueness theorems for the proposed system. Furthermore, the Green functions properties are investigated and used to discuss the Ulam-Hyers (𝕌ℍ) stability and its generalized by utilizing nonlinear analysis topics. Finally, three mathematical examples are provided with numerical results and figures by using Matlab software to illustrate the validity of our findings.

2023-08

Indian J Pure Appl Math (Volume : 2023)

We investigate the existence of a unique weak solution to a boundary value problem for a non-linear parabolic integro-differential equation. This equation can model heat diffusion phenomena in the case when a nonlinear dependence on a memory term is assumed.The proof of existence relies on a regularization – fixed point – passage to the limit scheme, whereas uniqueness is proved via contractive estimates.

2023-05

AIMS Mathematics (Issue : 8) (Volume : 8)

In this paper, we investigate a multi-order ϱ-Hilfer fractional pantograph implicit differential equation on unbounded domains (a,∞), a ≥ 0. The existence and uniqueness of solution are established for a such problem by utilizing the Banach fixed point theorem in an applicable Banach space. In addition, stability of the types Ulam-Hyers (UH), Ulam-Hyers-Rassias (UHR) and semi- Ulam-Hyers-Rassias (s-UHR) are discussed by using nonlinear analysis topics. Finally, a concrete example includes some particular cases is enhanced to illustrate rightful of our results.

2023-04

International Journal of Information System and Computer Science (Issue : 1) (Volume : 7)

The purpose of this research is to investegate the existence and uniqueness of solutions for a new class of Atangana-Baleanu fractional differential equations of order α∈(2,3) with periodic boundary conditions. Our results are based on the fixed points of Schauder, and Banach. In addition, investigate the stability of the solution using the Hyers-Ulam stable. Finally, presented an example to satisfy all theorems studies

2022-09

Journal of Scientific Research (Issue : 3) (Volume : 14)

The nonlinear fractional differential equation (FDE) is discussed in this study. First, we will investigate the existence and uniqueness solution of the nonlinear differential equation to the Atangana-Baleanu fractional derivative in the sense of Caputo with the initial periodic condition and integral boundary condition by Krasnoselskii’s and Banach fixed point theorems. Then, we will study the Hyers-Ulam stability of our problem. Finally, we presented an example to demonstrate the use of our main theorems.

2022-01

EUROPEAN JOURNAL OF PURE AND APPLIED MATHEMATICS (Issue : 1) (Volume : 15)

In this paper, we study a new approach to investigating of existence, uniqueness, and stability of the periodic solution of the nonlinear fractional integro-differential equation of type Caputo-Fabrizio fractional derivative with the initial condition, periodic boundary conditions, and integral boundary conditions by using successive approximations method and Banach fixed point theorem. Finally, some examples are presented to illustrate the theorems.

2021-08

Journal of Mathematical and Computational Science (Issue : 5) (Volume : 11)

In this work, the existence and uniqueness theorems for integro-differential equation involving the Caputo fractional derivative are established under some sufficient conditions and example for application the results of the theorems are presented.

2020-12

Science journal of university of Zakho (Issue : 4) (Volume : 8)

We give a new investigation of periodic solutions of nonlinear impulsive fractional integro-differential system with different orders of fractional derivatives with non-separated integral coupled boundary conditions. Uniformly Converging of the sequence of functions according to the main idea of the Numerical-analytic technique, from creating a sequence of functions. An example of impulsive fractional system is also presented to illustrate the theory.

2020-04

Journal of Xi'an University of Architecture & Technology (Issue : 4) (Volume : 12)

Consider the following non-linear system of differential equation which has the form: 𝒅𝒙(𝒕)/𝒅𝒕+ 𝒂(𝒕)𝒉(𝒚(𝒕)) = 𝒇(𝒕, 𝒙(𝒕 − 𝝉(𝒕)), 𝒚(𝒕 − 𝝉(𝒕)), 𝒅𝟐𝒚(𝒕)/𝒅𝒕𝟐 + 𝒑(𝒕)𝒅𝒚(𝒕)/𝒅𝒕+ 𝒒(𝒕)𝑱(𝒙(𝒕)) = 𝒈(𝒕, 𝒙(𝒕 − 𝝉(𝒕)), 𝒚(𝒕 − 𝝉(𝒕)) The aim of this paper is to use Krasnoselskii's fixed point theorem to show the existence of a positive periodic solutions for the above system. To apply Krasnoselskii's fixed point theorem requirement to construct two mappings; one is compact and the other is contraction. Using the contraction mapping principle enables us to show the uniqueness of the periodic solution.

2020-04

International Journal of Advanced Trends in Computer Science and Engineering, 9(2), March - April 2020, 1479 – 1485 (Issue : 2) (Volume : 9)

In this paper, we investigate the existence and uniqueness of solutions for a system of fractional integro-differential equations with non-separated integral coupled boundary conditions. Our results are based on the nonlinear alternative of Leray-Schauder type to study the existence of at least one continuous solution to fractional integro- differential system with non-separated integral coupled boundary conditions and uniqueness continuous solution using the Banach’s fixed-point theorem.The main results are well illustrated with the aid of an example.

2020-04

Journal of Xi'an University of Architecture & Technology (Issue : 4) (Volume : 12)

We give a new approach of investigation of existence and approximate of periodic solutions for the system of nonlinear fractional integro-differential equations with different orders of fractional derivatives subject to non-separated integral coupled boundary conditions. According to the main idea of the Numerical-analytic technique, we construct a sequence of functions that it proved to be convergent. It is shown that the limit function of the constructed sequence satisfies a fractional integro-differential equations and periodic conditions Finally, we studies the stability of periodic solutions and an example of fractional system is also presented to illustrate the theory.

2017-04

International Journal Of Advancement In Engineering Technology, Management and Applied Science (IJAETMAS) (Issue : 4) (Volume : 4)

The article deals with approximate and uniqueness periodic solutions for nonlinear system of nonlinear integro-differential equations with parameter and with boundary conditions. We provide a scheme of numerical-analytic method based upon successive approximations for investigate the periodic solution of ordinary differential equations, which are given by A. M.Samoilenko. We give sufficient conditions for the solvability of the problem and prove the uniform convergence of the approximations to the parameterized limit function.

2017-03

Science Journal of University of Zakho (Issue : 1) (Volume : 5)

In this paper, we investigate the existence, uniqueness and stability of the periodic solution for the system of nonlinear integro-differential equations by using the numerical-analytic methods for investigate the solutions and the periodic solutions of ordinary differential equations, which are given by A. Samoilenko.

2017-03

italian journal of pure and applied mathematics (Issue : 37) (Volume : 2017)

In this paper, we investigate the existence and uniqueness of the solution to a boundary value problem for integro-differential equation with parameter by using Schauder's xed point theorem.

2013-06

Journal of Koya university (Issue : 26) (Volume : 2013)

In this paper we investigate the existence and approximation of periodic solution for the system of nonlinear differential equations by using the numerical-analytic methods for investigate the periodic solutions of ordinary differential equations, which are given by A. Samoilenko.

2012-05

Journal of Duhok University (Issue : 1) (Volume : 15)

In this paper, we use the Schauder fixed point theorem to present an existence theorem for a class of fractional boundary value problem (BVP) of order alpha belong to (1,2) .

2011-06

journal of Duhok University (Issue : 1) (Volume : 14)

In this paper, we study the existence and uniqueness solution for nonlinear Volterra integral equation, by using both methods ( Picard Approximation ) and (Banach Fixed Point Theorem). Also these methods could be developed and extended throughout the study.