Volume 12, Issue 1 (11-2012)                   2012, 12(1): 295-304 | Back to browse issues page

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Jahanshahi M, Sajjadmanesh M. A NEW METHOD FOR INVESTIGATION AND RECOGNIZING OF SELF-ADJOINT BOUNDARY VALUE PROBLEMS. Journal title 2012; 12 (1) :295-304
URL: http://jsci.khu.ac.ir/article-1-1453-en.html
1- Azarbayjan University of Tarbiat Moallem
2- Azarbayjan university of Tarbiat Moallem
Abstract:   (5983 Views)
Boundary value problems (BVPs) are one of the most important fields in engineering and mathematical physics. In self-adjoint case of these problems, there are some facilities to solve them, such as
eigenvalues of adjoint equations are real numbers and associated eigenfunctions make an orthogonal
basis system.
In this paper a new method for investigation of self-adjoint B.V.Ps including ordinary differential
equations (O.D.Es) is introduced. Based on this method, at first, some necessary conditions
are obtained by making use of fundamental solutions of adjoint equations. Then an algebraic system is made by this necessary conditions and boundary conditions of given boundary value problem.
Finally, by making use of Lagrangian identity and boundary values of unknown function, sufficient conditions for having a self-adjoint problem are presented.
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Type of Study: Original Manuscript | Subject: Science
Published: 2012/11/15

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