On the existence of positive solutions for nonlinear differential equations with periodic boundary conditions |
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Institution: | Department of Mathematics, Ege University, 35100 Bornova, Izmir, Turkey |
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Abstract: | We prove the existence of positive solutions of second-order nonlinear differential equations on a finite interval with periodic boundary conditions and give upper and lower bounds for these positive solutions. Obtained results yield positive periodic solutions of the equation on the whole real axis, provided that the coefficients are periodic. |
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