TY - JOUR A2 - Forster-Heinlein, Brigitte AU - Panda, K. C. AU - Rath, R. N. AU - Rath, S. K. PY - 2020 DA - 2020/05/01 TI - Oscillatory Behaviour of a First-Order Neutral Differential Equation in relation to an Old Open Problem SP - 9383481 VL - 2020 AB - In this paper, we obtain sufficient conditions for oscillation and nonoscillation of the solutions of the neutral delay differential equation ÿ Ť -GÿdF4y2Ba ΣGÿdF4y2Ba Ĵ = 1 ķ p Ĵ Ť ÿ [R Ĵ Ť + q Ť GGÿdF4y2Ba ÿ G Ť -GÿdF4y2Ba ü Ť HGÿdF4y2Ba ÿ H Ť = FGÿdF4y2Ba Ť ,其中GÿdF4y2Ba p Ĵ  and  [R Ĵ 每个GÿdF4y2Ba Ĵ 和GÿdF4y2Ba q ü GGÿdF4y2Ba HGÿdF4y2Ba G H  and  FGÿdF4y2Ba 都是连续函数和GÿdF4y2Ba q ≥GÿdF4y2Ba 0 ü ≥GÿdF4y2Ba 0 H Ť < Ť G Ť < Ť  and  [R Ĵ Ť < Ť 每个GÿdF4y2Ba Ĵ 。此外,每个 [R Ĵ Ť G Ť 和GÿdF4y2Ba H Ť ∞GÿdF4y2Ba 如GÿdF4y2Ba Ť ∞GÿdF4y2Ba 。本文改进和推广了一些已知的结果。SN - 0161-1712 UR - https://doi.org/10.1155/2020/9383481 DO - 10.1155 /九百三十八万三千四百八十一分之二千○二十〇JF - 国际杂志的数学和数学科学PB - Hindawi出版KW - ER -