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**On forced first order neutral differential equations with positive and negative coefficients.**
*(English)*
Zbl 0959.34051

Summary: Sufficient conditions are obtained for the oscillation of bounded (unbounded) solutions to a class of forced first-order neutral differential equations with positive and negative coefficients. The techniques used here are different from those used to be employed for such equations earlier.

### MSC:

34K11 | Oscillation theory of functional-differential equations |

34K40 | Neutral functional-differential equations |

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\textit{N. Parhi} and \textit{S. Chand}, Math. Slovaca 50, No. 1, 81--94 (2000; Zbl 0959.34051)

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### References:

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[5] | YU J. S.: Neutral differential equations with positive and negative coefficients. Acta. Math. Sinica 34 (1991), 517 523. · Zbl 0738.34040 |

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