Extremal solutions for the first order i
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Guotao Wang; Lihong Zhang; Guangxing Song
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Article
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2010
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Elsevier Science
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English
⚖ 300 KB
boundary conditions a b s t r a c t This paper studies the existence of solutions of first order impulsive functional differential equations with lower and upper solutions in the reversed order, obtains the sufficient conditions for the existence of solutions by establishing a new comparison princip