Ejectivity
Mostrando 1-2 de 2 artigos, teses e dissertações.
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1. Sistemas impulsivos com retardamento: soluções periódicas. / Periodic solutions of an impulsive differential system with delay: an Lp approach.
We prove the existence of periodic solutions of some retarded functional differential equations subjected to impulsive self-supporting conditions. Due to the impulses, solutions exhibit discontinuites of the first kind and this forces the consideration of more general phase spaces than C([-r,0],Rn). We show that periodic solutions can emanate from the origin
Publicado em: 2000
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2. Existência e bifurcações de soluções periódicas da equação de Wright. / Existence and bifurcations of periodic solutions of the Wright s equations.
This work is concerned with periodicity in the Wright s equation. We prove the existence of nonconstant periodic solutions by exploiting the ejectivity concept in a theorem of fixed point. Furthemore, we prove the existence of an infinite sequence of Hopf Bifurcations.
Publicado em: 1999