摘要:Asymptotic properties of solutions of a difference equation of the form Δ m x n = a n f ( n , x σ ( n ) ) + b n are studied. We present sufficient conditions under which, for any polynomial φ ( n ) of degree at most m − 1 and for any real s ≤ 0 , there exists a solution x of the above equation such that x n = φ ( n ) + o ( n s ) . We give also sufficient conditions under which, for given real s ≤ m − 1 , all solutions x of the equation satisfy the condition x n = φ ( n ) + o ( n s ) for some polynomial φ ( n ) of degree at most m − 1 . MSC:39A10.