This paper, we discuss a class of second order nonlinear neutral differential equations with variable coefficients and variable deviations, Sharp conditions are established for all bounded solutions of the equations ...This paper, we discuss a class of second order nonlinear neutral differential equations with variable coefficients and variable deviations, Sharp conditions are established for all bounded solutions of the equations to be oscillatory, Linearized oscillation criteria of the equations are also given,展开更多
文摘This paper, we discuss a class of second order nonlinear neutral differential equations with variable coefficients and variable deviations, Sharp conditions are established for all bounded solutions of the equations to be oscillatory, Linearized oscillation criteria of the equations are also given,