Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions

The article considers third-order equations with multiple characteristics with general boundary value conditions and non-local initial data. A regular solution to the problem with known methods is constructed here. The uniqueness of the solution to the problem is proved by the method of energy integ...

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Main Authors: Abdukomil Risbekovich Khashimov, Dana Smetanová
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/10/2/110
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author Abdukomil Risbekovich Khashimov
Dana Smetanová
author_facet Abdukomil Risbekovich Khashimov
Dana Smetanová
author_sort Abdukomil Risbekovich Khashimov
collection DOAJ
description The article considers third-order equations with multiple characteristics with general boundary value conditions and non-local initial data. A regular solution to the problem with known methods is constructed here. The uniqueness of the solution to the problem is proved by the method of energy integrals. This uses the theory of non-negative quadratic forms. The existence of a solution to the problem is proved by reducing the problem to Fredholm integral equations of the second kind. In this case, the method of Green’s function and potential is used.
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spelling doaj.art-9e4eed37f1d049e8a625b360b6584aa52023-11-21T22:30:11ZengMDPI AGAxioms2075-16802021-06-0110211010.3390/axioms10020110Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary ConditionsAbdukomil Risbekovich Khashimov0Dana Smetanová1Department of Higher Mathematics, Statistics and Econometry, Faculty of Accounting and Auditing, Tashkent Finance Institute, A. Temur 60A, Tashkent 100000, UzbekistanDepartment of Informatics and Natural Sciences, Faculty of Technology, Institute of Technology and Business in České Budějovice, Okružní 10, 370 01 Ceské Budějovice, Czech RepublicThe article considers third-order equations with multiple characteristics with general boundary value conditions and non-local initial data. A regular solution to the problem with known methods is constructed here. The uniqueness of the solution to the problem is proved by the method of energy integrals. This uses the theory of non-negative quadratic forms. The existence of a solution to the problem is proved by reducing the problem to Fredholm integral equations of the second kind. In this case, the method of Green’s function and potential is used.https://www.mdpi.com/2075-1680/10/2/110third order equations with multiple characteristicboundary conditionnonlocal problemuniqueness theoremFredholm integral equation of the second kindexistence theorem
spellingShingle Abdukomil Risbekovich Khashimov
Dana Smetanová
Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions
Axioms
third order equations with multiple characteristic
boundary condition
nonlocal problem
uniqueness theorem
Fredholm integral equation of the second kind
existence theorem
title Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions
title_full Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions
title_fullStr Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions
title_full_unstemmed Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions
title_short Nonlocal Problem for a Third-Order Equation with Multiple Characteristics with General Boundary Conditions
title_sort nonlocal problem for a third order equation with multiple characteristics with general boundary conditions
topic third order equations with multiple characteristic
boundary condition
nonlocal problem
uniqueness theorem
Fredholm integral equation of the second kind
existence theorem
url https://www.mdpi.com/2075-1680/10/2/110
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