Existence and uniqueness of periodic solution for a class of impulsive second-order retarded functional differential equations

2016 ◽  
Vol 11 ◽  
pp. 309-328
Author(s):  
Suzete M. Afonso ◽  
Andre L. Furtado
1986 ◽  
Vol 102 (3-4) ◽  
pp. 259-262 ◽  
Author(s):  
J. G. Dos Reis ◽  
R. L. S. Baroni

SynopsisLet Ca be the set of all the continuous functions from the interval [−r, 0] on the sphere of radius a, on the plane. We prove, under certains conditions, that a retarded autonomous differential equation that leaves Ca invariant has a non-constant periodic solution.


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