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Usted está aquí: Inicio / Actividades / Seminarios / Seminario de Ecuaciones Diferenciales No Lineales (SEDNOL) / Actividades del Seminario de Ecuaciones Diferenciales No Lineales / Applications of topological degree theory to some differential equations with singularities

Applications of topological degree theory to some differential equations with singularities

Ponente: Pablo Amster
Institución: Universidad de Buenos Aires
Tipo de Evento: Investigación
Cuándo 29/10/2015
de 11:00 a 12:00
Dónde Salón de seminarios 3
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We prove existence and multiplicity of periodic motions for some
singular problems using topological degree. More precisely, we shall
assume there is a central
force (attractive or repulsive) and an external force λh(t), periodic
in time. The periodic second primitive of h(t) defines a planar curve
and the number of periodic solutions of the differential equation is
linked to the number of loops of this curve, at least when the
parameter λ is large.