Positive Solutions for the nth-Order Delay Differential System with Multi-Parameter

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In this paper, we are concerned with the existence of positive solutions for the nonlinear eigenvalue problem of the nth-order delay di erential system. The main results in this paper generalize some of the existing results in the literature. Our proofs are based on the well-known Guo-Krasnoselskii xed-point theorem. Three main results are given out, the rst two of which refer to the existence while the last one not only guarantees to its existence but also is pertinent to its multiplicity.

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185-189

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February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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