Quadratic eigenparameter dependent discrete Sturm Liouville equations with spectral singularities
Yazarlar (2)
Prof. Dr. Turhan KÖPRÜBAŞI Kastamonu Üniversitesi, Türkiye
Nihal Yokuş Selçuk Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Applied Mathematics and Computation
Dergi ISSN 0096-3003 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 10-2014
Kabul Tarihi Yayınlanma Tarihi 01-10-2014
Cilt / Sayı / Sayfa 244 / 1 / 57–62 DOI 10.1016/j.amc.2014.06.072
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0096300314009163
Özet
Let us consider the boundary value problem (BVP) for the discrete Sturm-Liouville equationan-1yn-1+bn yn+anyn+1yn,n N,( γ0+γ1λ+γ2 λ2)y1+(β0+ β1λ+β2λ2) y0=0,where (an) and (bn),nâ̂̂N are complex sequences, γi,βiâ̂̂ C,i=0,1,2, and λ is a eigenparameter. Discussing the point spectrum, we prove that the BVP (0.1) and (0.2) has a finite number of eigenvalues and spectral singularities with a finite multiplicities, ifsupnâ̂̂ Nexp(ε)1-an+bn<â̂ for some ε>0 and 12≤δ≤1. © 2014 Elsevier Inc. All rights reserved.
Anahtar Kelimeler
Discrete equations | Eigenparameter | Eigenvalues | Spectral analysis | Spectral singularities