Positive solutions for a scalar differential equation with several delays
نویسندگان
چکیده
For a scalar delay differential equation ẋ(t) + ∑m k=1 ak(t)x(hk(t)) = 0, hk(t) ≤ t, we obtain new explicit conditions for the existence of a positive solution. c © 2007 Elsevier Ltd. All rights reserved.
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عنوان ژورنال:
- Appl. Math. Lett.
دوره 21 شماره
صفحات -
تاریخ انتشار 2008