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Eigenparameter dependent discrete Dirac equations with spectral singularities     
Yazarlar
Elgiz Bayram
Türkiye
Prof. Dr. Turhan KÖPRÜBAŞI Prof. Dr. Turhan KÖPRÜBAŞI
Kastamonu Üniversitesi, Türkiye
Özet
Let us consider the Boundary Value Problem (BVP) for the discrete Dirac Equations. (0.1)fenced((an + 1 yn + 1(2) + bn yn(2) + pn yn(1) = λ yn(1); an - 1 yn - 1(1) + bn yn(1) + qn yn(2) = λ yn(2),, n ∈ N,))(0.2)(γ0 + γ1 λ) y1(2) + (β0 + β1 λ) y0(1) = 0,. where (an), (bn), (pn) and (qn), n ∈ N are complex sequences,. γi, βi ∈ C, i = 0, 1 and λ is a eigenparameter. Discussing the eigenvalues and the spectral singularities, we prove that the BVP (0.1), (0.2) has a finite number of eigenvalues and spectral singularities with a finite multiplicities, if. underover(∑, n = 1, ∞) exp (ε nδ) (| 1 - an | + | 1 + bn | + | pn | + | qn |) < ∞,. holds, for some ε > 0 and frac(1, 2) ≤ δ ≤ 1 . © 2009 Elsevier Inc. All rights reserved.
Anahtar Kelimeler
14H45 | 14H50 | 53A04 | Discrete Dirac equations | Discrete spectrum | Spectral analysis | Spectral singularities
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı APPLIED MATHEMATICS AND COMPUTATION
Dergi ISSN 0096-3003
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 02-2010
Cilt No 215
Sayı 12
Sayfalar 4216 / 4220
Doi Numarası 10.1016/j.amc.2009.12.043
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S009630030901090X