Asymptotic behavior of higher-order neutral difference equations with general arguments
Authors
G. E. Chatzarakis
School Ped. and Technol. Education, Athens, Greece
H. Khatibzadeh
Univ. Zanjan, Iran
G. N. Miliaras
Amer. Univ. Athens, Greece
I. P. Stavroulakis
Univ. Ioannina, Greece
Abstract
We study the asymptotic behavior of solutions of the higher-order neutral difference equation
$$Δm[x(n)+cx(τ(n))]+p(n)x(σ(n))=0,N∍m≥2,n≥0,$$
where $τ (n)$ is a general retarded argument, $σ(n)$ is a general deviated argument, $c ∈ R; (p(n)) n ≥ 0$ is a sequence of real numbers, $∆$ denotes the forward difference operator $∆x(n) = x(n+1) - x(n)$; and $∆^j$ denotes the jth forward difference operator $∆^j (x(n) = ∆ (∆^{j-1}(x(n)))$ for $j = 2, 3,…,m$. Examples illustrating the results are also given.