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Periodic solutions for second order differential equations with discontinuous restoring forces |
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| Authors: | J.Á ngel Cid,Luis Sanchez |
| Affiliation: | a Departamento de Análise Matemática, Facultade de Matemáticas, Campus Sur, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain b Centro de Matemática e Aplicações Fundamentais, Universidade de Lisboa, Avenida Professor Gama Pinto 2, 1649-003 Lisboa, Portugal |
| Abstract: | We deal with the existence of periodic solutions for problems with a jump discontinuity. We use an approximation procedure and the method of the lower and upper solutions. |
| Keywords: | Periodic solutions Discontinuous problems Second order differential equations Lower and upper solutions |
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