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Applied Mathematics Letters
Volume 13, Issue 6, August 2000, Pages 55-61
 
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doi:10.1016/S0893-9659(00)00054-9    How to Cite or Link Using DOI (Opens New Window)
Copyright © 2000 Published by Elsevier Science Ltd.

Eventually positive solutions of odd order neutral differential equations

Guang Zhang

Department of Mathematic, Datong Advanced College, Datong, Shanxi 037008, P.R. China

Available online 6 September 2000.

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Abstract

The odd order neutral differential equations are considered. New necessary and sufficient conditions, and comparison theorems of existence of eventually positive solutions are obtained. Nonexistence criteria of eventually positive solutions are also established.

Author Keywords: Neutral differential equation; Eventually positive solution; Existence theorem; Comparison theorem

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