We use Krasnoselskii's fixed point theorem to prove the existence of positive periodic solutions of the second-order nonlinear neutral differential equation
Submitted November 1, 2011. Published January 20, 2012.
Math Subject Classifications: 34K20, 45J05, 45D05.
Key Words: Neutral equation; positive periodic solution.
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| Ernest Yankson |
Department of Mathematics and Statistics
University of Cape Coast, Ghana
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