Green function of discontinuous boundary-value problem with transmission conditions    
Yazarlar (3)
Prof. Dr. Zülfigar AKDOĞAN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
M. Demirci
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Oktay Muhtaroğlu
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Mathematical Methods in the Applied Sciences
Dergi ISSN 0170-4214 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 09-2007
Cilt No 30
Sayı 14
Sayfalar 1719 / 1738
DOI Numarası 10.1002/mma.867
Makale Linki http://doi.wiley.com/10.1002/mma.867
Özet
In this paper, we deal with Sturm-Liouville-type problems when the potential of the differential equation may have discontinuity at one inner point and the eigenparameter appears not only in the differential equation, but also in both boundary and transmission conditions. By modifying some techniques of (Two-point boundary value problems with eigenvalue parameter contained in the boundary conditions. Proc. R. Soc. Edin. 1977; 77A:293-308; Eigenfunction Expenses Associated with Second-Order Differential Equations I (2nd edn). Oxford University Press: London, 1962) we generalize some results of the classic regular Sturm-Liouville problems. In particular, we construct Green's function, and derive asymptotic approximation formulae for Green's function. Further, we introduce a new operator-theoretic formulation in suitable Hilbert space such a way that the considered problem can be interpreted as the eigenvalue problem of this operator and constract the resolvent of this operator in terms of Green's function. Finally, we estimate the norm of resolvent of this operator. Copyright © 2007 John Wiley & Sons, Ltd.
Anahtar Kelimeler
Discontinuous Sturm-Liouville problems | Eigenfunctions | Eigenparameter-dependent boundary conditions | Eigenvalues | Green's function | Resolvent | Transmission conditions