Oscillation of neutral delay difference equations of second order with positive and negative coefficients

Mathematica Slovaca

Seshadev Padhi¹  Chuanxi Qian¹ 

关键词: oscillatory solution;    nonoscillatory solution;   

DOI  :  10.2478/s12175-009-0139-y

学科分类：数学（综合）

来源: Slovenska Akademia Vied * Matematicky Ustav / Slovak Academy of Sciences, Mathematical Institute

【 摘 要 】

This paper is concerned with a class of neutral difference equations of second order with positive and negative coefficients of the forms $$Delta ^2 (x_n pm c_n x_{n - au } ) + p_n x_{n - delta } - q_n x_{n - sigma } = 0$$ where τ, δ and σ are nonnegative integers and {p n}, {q n} and {c n} are nonnegative real sequences. Sufficient conditions for oscillation of the equations are obtained.

【 授权许可】

Unknown