A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations

The article is devoted to the study of the asymptotic behavior of solving an integral boundary value problem for a third - order linear differential equation with a small parameter for two higher derivatives, provided that the roots of the "additional characteristic equation" have opposit...

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Main Authors: N.U. Bukanay, A.E. Mirzakulova, M.K. Dauylbayev, K.T. Konisbayeva
Format: Article
Language:English
Published: Academician Ye.A. Buketov Karaganda University 2020-06-01
Series:Қарағанды университетінің хабаршысы. Математика сериясы
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Online Access:http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/357
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author N.U. Bukanay
A.E. Mirzakulova
M.K. Dauylbayev
K.T. Konisbayeva
author_facet N.U. Bukanay
A.E. Mirzakulova
M.K. Dauylbayev
K.T. Konisbayeva
author_sort N.U. Bukanay
collection DOAJ
description The article is devoted to the study of the asymptotic behavior of solving an integral boundary value problem for a third - order linear differential equation with a small parameter for two higher derivatives, provided that the roots of the "additional characteristic equation" have opposite signs. In the work are constructed the fundamental system of solutions, boundary functions for singularly perturbed homogeneous differential equation and are provided their asymptotic representations. An analytical formula of solution for a given singularly perturbed integral boundary value problem is obtained. Theorem about asymptotic estimates of solution is proved. For a singularly perturbed integral boundary value problem, the growth of the solution and its derivatives at the boundary points of this segment is obtained when the small parameter tends to zero. It is established that the solution of a singularly perturbed integral boundary value problem has initial jumps at both ends of this segment...
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series Қарағанды университетінің хабаршысы. Математика сериясы
spelling doaj.art-0656f67bebc246dda6514ab0871314c82023-12-29T10:20:21ZengAcademician Ye.A. Buketov Karaganda UniversityҚарағанды университетінің хабаршысы. Математика сериясы2518-79292663-50112020-06-01982A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equationsN.U. BukanayA.E. MirzakulovaM.K. DauylbayevK.T. Konisbayeva The article is devoted to the study of the asymptotic behavior of solving an integral boundary value problem for a third - order linear differential equation with a small parameter for two higher derivatives, provided that the roots of the "additional characteristic equation" have opposite signs. In the work are constructed the fundamental system of solutions, boundary functions for singularly perturbed homogeneous differential equation and are provided their asymptotic representations. An analytical formula of solution for a given singularly perturbed integral boundary value problem is obtained. Theorem about asymptotic estimates of solution is proved. For a singularly perturbed integral boundary value problem, the growth of the solution and its derivatives at the boundary points of this segment is obtained when the small parameter tends to zero. It is established that the solution of a singularly perturbed integral boundary value problem has initial jumps at both ends of this segment... http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/357: singularly perturbed differential equationasymptotic estimatesboundary functionssmall parameter
spellingShingle N.U. Bukanay
A.E. Mirzakulova
M.K. Dauylbayev
K.T. Konisbayeva
A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
Қарағанды университетінің хабаршысы. Математика сериясы
: singularly perturbed differential equation
asymptotic estimates
boundary functions
small parameter
title A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
title_full A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
title_fullStr A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
title_full_unstemmed A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
title_short A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
title_sort boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations
topic : singularly perturbed differential equation
asymptotic estimates
boundary functions
small parameter
url http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/357
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