Oscillation criteria for first-order neutral differential equations
نویسنده
چکیده
d Ž . Ž . Ž . Sufficient conditions for the oscillation of the equation x t R t x t r dt Ž . Ž . Ž . Ž . Ž . . Ž . P t x t Q t x t 0, where P, Q, R C t , , R , r 0, , 0 Ž . t Ž . , R , , are obtained where R t H Q u du 1 is allowed to t Ž . Ž . Ž . Ž oscillate and the condition H s P s Q s H P u Q u t s 0 . du ds is not necessary. Some examples are given, which show that the results here are almost sharp. 2001 Academic Press
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ورودعنوان ژورنال:
- Appl. Math. Lett.
دوره 15 شماره
صفحات -
تاریخ انتشار 2002