Oscillation of solutions of non-linear neutral delay differential equations of higher order for
Radhanath N. Rath, Laxmi N. Padhy, Niyati Misra (2004)
Archivum Mathematicum
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In this paper, the oscillation criteria for solutions of the neutral delay differential equation (NDDE) has been studied where or , , , , . This work improves and generalizes some recent results and answer some questions that are raised in [1].