Koprubasi T., Yokus N.Koprubasi, T, Yokus, N2023-05-092023-05-092018-04-032018.01.011747-6933https://hdl.handle.net/20.500.12597/13256In this paper, we study the principal functions corresponding to the eigenvalues and the spectral singularities of the boundary value problem (BVP) an-1yn-1 + bnyn + anyn+1 = λyn, n∈ ℕ (γ0 + γ1λ + γ2λ2)y1 + (β0 _ β1λ + β2λ2)yo = 0 where (an) and (bn) n ∈ ℕ are complex sequences, γi βi, ∈ and ℂ is a eigenparameter.falseDiscrete equations | eigenparameter | eigenvalues | principal functions | spectral analysisPrincipal functions of non-selfadjoint discrete Sturm-Liouville equations with quadratic spectral parameter in boundary conditionsPrincipal functions of non-selfadjoint discrete Sturm-Liouville equations with quadratic spectral parameter in boundary conditionsArticle10.1080/17476933.2017.132207310.1080/17476933.2017.13220732-s2.0-85021420641WOS:000423716700002472481631747-6941