References
P. Das, Oscillation criteria for odd order neutral equations, J. Math. Anal. Appl., 188 (1994), 245–257.
P. Das, Oscillation of odd order neutral delay differential equation, Czech. Math. J., 45 (1995), 241–251.
K. Gopalsamy, B. S. Lalli and B. G. Zhang, Oscillation of odd order neutral differential equations, Czech. Math. J., 42 (1992), 313–323.
I. Györi, Oscillation of retarded differential equations of neutral and mixed types, J. Math. Anal. Appl., 141 (1989), 1–20.
B. R. Hunt and J. A. Yorke, When all solutions of x′ = − ∑ qix(t − Ti) oscillate, J. Differential Equations, 53 (1984), 139–145.
G. Ladas, Y. G. Sficas and I. P. Stavroulakis, Necessary and sufficient conditions for oscillations of higher order delay differential equations, Trans. Amer. Math. Soc., 285 (1984), 81–90.
G. S. Ladde, V. Lakshmikantham and B. G. Zhang, Oscillation Theory of Differential Equations with Deviating Arguments, Dekker (New York, 1987).
Z. Wang, Necessary and sufficient condition for the oscillation of higher order neutral equations, Tohoku Math. J., 41 (1989), 575–588.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Das, P., Mishra, B.B. Oscillatory Phenomena in Neutral Delay Differential Equations. Acta Mathematica Hungarica 75, 323–335 (1997). https://doi.org/10.1023/A:1006549722783
Issue Date:
DOI: https://doi.org/10.1023/A:1006549722783