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Master's Dissertation
DOI
Document
Author
Full name
Maria Elisa Quiroga
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1992
Supervisor
Committee
Táboas, Plácido Zoega (President)
Freiria, Antonio Acra
Godoy, Sandra Maria Semensato de
Title in Portuguese
PERIODICIDADE PARA UMA CLASSE DE EQUAÇÕES DIFERENCIAIS RETARDADAS NO PLANO
Keywords in Portuguese
Não disponível
Abstract in Portuguese
Não disponível
Title in English
Not available
Keywords in English
Not available
Abstract in English
We are concerned vvith periodicity results for the planar delay-differential equation x(t) = -x(t) αF (x(t -1)), α > 0. With F satisfying a kind of planar negative feedback condition and some appropriate hypotheses, we state an existence theorem for nonconstant periodic solutions. Neglecting the boundedness condition on F, we show the existence of a sequence of values of α, α0 < α1 < ..., where a Hopf bifurcation occurs.
 
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Publishing Date
2019-11-29
 
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