The spectrum of eigenparameter dependent discrete Sturm Liouville equations
Yazarlar (3)
Elgiz Bairamov Ankara Üniversitesi, Türkiye
Yelda Aygar Ankara Üniversitesi, Türkiye
Prof. Dr. Turhan KÖPRÜBAŞI Ankara Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Computational and Applied Mathematics (Q4)
Dergi ISSN 0377-0427 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 06-2011
Kabul Tarihi Yayınlanma Tarihi 01-06-2011
Cilt / Sayı / Sayfa 235 / 16 / 4519–4523 DOI 10.1016/j.cam.2009.12.037
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0377042709008541
Özet
Let us consider the boundary value problem (BVP) for the discrete SturmLiouville equation an-1yn-1+bny n+anyn+1=λ yn,n∈N, (γ0+γ1λ) y1+(β0+β1λ)y0=0, where (an) and (bn),n∈N are complex sequences, γii∈C,i=0,1, and λ is a eigenparameter. Discussing the point spectrum, we prove that the BVP (0.1), (0.2) has a finite number of eigenvalues and spectral singularities with a finite multiplicities, if supn∈N[exp(ε nδ)(|1a n|+|bn|)]<∞, for some ε>0 and 12≤δ≤1. © 2011 Published by Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Discrete equations | Eigenvalues | Spectral analysis | Spectral singularities