Existence of one-signed periodic solutions of some second-order differential equations via a Krasnoselskii fixed point theorem
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Keywords
Periodic solution
Krasnoselskii fixed point theorem
Green's function
Jumping nonlinearity
Singular equation
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Supported by C.I.C.T. BFM2002-01308, Ministerio de Ciencia y Tecnologı́a, Spain.
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