- Gazi University Journal of Science
- Vol: 35 Issue: 4
- Spectrum and the Jost Solution of Discrete Impulsive Klein-Gordon Equation with Hyperbolic Eigenpara...
Spectrum and the Jost Solution of Discrete Impulsive Klein-Gordon Equation with Hyperbolic Eigenparameter
Authors : Turhan Köprübaşi
Pages : 1614-1622
Doi:10.35378/gujs.881459
View : 9 | Download : 4
Publication Date : 2022-12-01
Article Type : Research
Abstract :Let L denote the quadratic pencil of difference operator with boundary and impulsive conditions generated in l_2 (N) by △(a_(n-1)△y_(n-1) )+(q_n+2λp_n+λ^2 ) y_n=0 , n∈N∖{k-1,k,k+1}, y_0=0, (■(y_(k+1)@△y_(k+1) ))=θ(■(y_(k-1)@▽y_(k-1) )); θ=(■(θ_1&θ_2@θ_3&θ_4 )),{θ_i }_(i=1,2,3,4)∈R where {a_n }_( n∈N), {p_n }_( n∈N), {q_n }_( n∈N) are real sequences, λ=2 cosh(z/2) is a hyperbolic eigenparameter and △, ▽ are respectively forward and backward operators. In this paper, the spectral properties of L such as the spectrum, the eigenvalues, the scattering function and their properties are investigated. Moreover, an example about the scattering function and the existence of eigenvalues is given in the special cases, if ∑_(n=1)^∞▒n(|1-a_n |+|p_n |+|q_n |) <∞.Keywords : Klein-Gordon Equations, Impulsive Condition, Hyperbolic Eigenparameter, Spectral Analysis, Scattering Function