Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line

We consider a class of nonlinear integral equations with a stochastic and symmetric kernel on the whole line. With certain particular representations of the kernel and nonlinearity, equations of the mentioned type arise in many branches of mathematical natural science. In particular, such equations...

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Main Authors: Khachatur A. Khachatryan, Haykanush S. Petrosyan
Format: Article
Language:English
Published: Samara State Technical University 2022-09-01
Series:Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
Subjects:
Online Access:https://journals.eco-vector.com/1991-8615/article/viewFile/106733/pdf
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author Khachatur A. Khachatryan
Haykanush S. Petrosyan
author_facet Khachatur A. Khachatryan
Haykanush S. Petrosyan
author_sort Khachatur A. Khachatryan
collection DOAJ
description We consider a class of nonlinear integral equations with a stochastic and symmetric kernel on the whole line. With certain particular representations of the kernel and nonlinearity, equations of the mentioned type arise in many branches of mathematical natural science. In particular, such equations occur in the theoryp-adic strings, in the kinetic theory of gases, in mathematical biology and in the theory of radiative transfer. Constructive existence theorems are proved for non-negative non-trivial and bounded solutions under various restrictions on the function describing the nonlinearity in the equation. Under additional restrictions on the kernel and on the nonlinearity, a uniqueness theorem is also proved in a certain class of bounded and non-negative functions that have a finite limit in.At the end, specific applied examples of the kernel and non-linearity are given that satisfy to all restrictions of the proven statements.
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spelling doaj.art-cdeb49eb21074e19944599e6b6c694032023-02-10T08:13:31ZengSamara State Technical UniversityVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki1991-86152310-70812022-09-0126344647910.14498/vsgtu193277828Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole lineKhachatur A. Khachatryan0https://orcid.org/0000-0002-4835-943XHaykanush S. Petrosyan1https://orcid.org/0000-0002-7172-4730Yerevan State UniversityArmenian National Agrarian UniversityWe consider a class of nonlinear integral equations with a stochastic and symmetric kernel on the whole line. With certain particular representations of the kernel and nonlinearity, equations of the mentioned type arise in many branches of mathematical natural science. In particular, such equations occur in the theoryp-adic strings, in the kinetic theory of gases, in mathematical biology and in the theory of radiative transfer. Constructive existence theorems are proved for non-negative non-trivial and bounded solutions under various restrictions on the function describing the nonlinearity in the equation. Under additional restrictions on the kernel and on the nonlinearity, a uniqueness theorem is also proved in a certain class of bounded and non-negative functions that have a finite limit in.At the end, specific applied examples of the kernel and non-linearity are given that satisfy to all restrictions of the proven statements.https://journals.eco-vector.com/1991-8615/article/viewFile/106733/pdfmonotonicitysuccessive approximationsconvergencebounded solutionsolution limitcaratheodory condition
spellingShingle Khachatur A. Khachatryan
Haykanush S. Petrosyan
Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
monotonicity
successive approximations
convergence
bounded solution
solution limit
caratheodory condition
title Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
title_full Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
title_fullStr Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
title_full_unstemmed Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
title_short Questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
title_sort questions of the existence and uniqueness of the solution of one class of nonlinear integral equations on the whole line
topic monotonicity
successive approximations
convergence
bounded solution
solution limit
caratheodory condition
url https://journals.eco-vector.com/1991-8615/article/viewFile/106733/pdf
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