PORTUGALIAE MATHEMATICA Vol. 62, No. 1, pp. 13-24 (2005) |
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Periodic solutions of a resonant higher order equationP. Amster, P. De Nápoli and M.C. MarianiDepartamento de Matemática, FCEyN -- Facultad de Ciencias Exactas y Naturales,Universidad de Buenos Aires, Buenos Aires -- ARGENTINA CONICET -- Consejo Nacional de Investigaciones Científicas y Técnicas -- ARGENTINA Departamento de Matemática, FCEyN -- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires -- ARGENTINA Department of Mathematics, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003-8001 -- USA Abstract: We study the existence of periodic solutions for an ordinary differential equation of resonant type. Under suitable conditions we prove the existence of at least one periodic solution of the problem applying Mawhin Coincidence degree theory. Full text of the article:
Electronic version published on: 7 Mar 2008.
© 2005 Sociedade Portuguesa de Matemática
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