Positive Periodic Solutions of Second-Order Differential Equations with Delays
Keyword(s):
The existence results of positiveω-periodic solutions are obtained for the second-order differential equation with delays−u″+a(t)=f(t,u(t−τ1),...,u(t−τn)), wherea∈C(ℝ,(0,∞))is aω-periodic function,f:ℝ×[0,∞)n→[0,∞)is a continuous function, which isω-periodic int, andτ1,τ2,...,τnare positive constants. Our discussion is based on the fixed point index theory in cones.
2012 ◽
Vol 2012
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pp. 1-15
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Keyword(s):
2010 ◽
Vol 2010
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pp. 1-14
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2021 ◽
Vol 0
(0)
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Keyword(s):
2005 ◽
Vol 18
(11)
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pp. 1256-1264
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