TY - JOUR ID - Selvarangam2019 LB - Selvarangam2019 AU - Selvarangam, S. AU - Rupadevi, S. A. AU - Thandapani, E. AU - Pinelas, S. TI - Oscillation criteria for even order neutral difference equations ST - Oscillation criteria for even order neutral difference equations JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2019 VL - 39 IS - 1 SP - 91 EP - 108 DO - https://doi.org/10.7494/OpMath.2019.39.1.91 UR - https://doi.org/10.7494/OpMath.2019.39.1.91 AB - In this paper, we present some new sufficient conditions for oscillation of even order nonlinear neutral difference equation of the form \[\Delta^m(x_n+ax_{n-\tau_1}+bx_{n+\tau_2})+p_nx_{n-\sigma_1}^{\alpha}+q_nx_{n+\sigma_2}^{\beta}=0,\quad n\geq n_0\gt0,\] where \(m\geq 2\) is an even integer, using arithmetic-geometric mean inequality. Examples are provided to illustrate the main results. KW - even order KW - neutral difference equation KW - oscillation KW - asymptotic behavior KW - mixed type SN - 1232-9274 ER -