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Doctoral Thesis
DOI
https://doi.org/10.11606/T.55.2017.tde-15122017-161508
Document
Author
Full name
Mauricio Luciano Pelicer
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2005
Supervisor
Committee
Morales, Eduardo Alex Hernandez (President)
Cavalcanti, Valéria Neves Domingos
Fu, Ma To
Henriquez, Claudio Rodrigo Cuevas
Ladeira, Luiz Augusto da Costa
Title in Portuguese
Existência de soluções quase e assintoticamente quase periódicas para equações funcionais abstratas do tipo neutro com retardamento não limitado
Keywords in Portuguese
Não disponível
Abstract in Portuguese
Neste trabalho estudamos alguns critérios para existência de soluções quase e assintoticamente quase periódicas para os sistemas de equações diferenciais funcionais neutras com retardo não limitado modelados nas formas d/dt (x(t) + g(t, xt)) = Ax(t)+f(t, xt), t ∈ I = (- ∞ , a], x0 = φ ∈ Β, d /dt (x' (t) + g (t, xt)), Ax (t) + f(t, xt), t ∈ I = (- ∞ , a], x0 = p (φ , xt1, xt2, ..., xtn) ∈ Β, x'(0) = q(φ, xt1, xt2, ... xt2, ... xtn, onde A é o gerador infinitesimal de um C0-semigrupo de operadores lineares sobre um espaço de Banach X, A é o gerador infinitesimal de uma família cosseno de operadores lineares, a história xt : (-∞, 0] → X, xt (θ ) = x(t + θ ), pertence a algum espaço de fase abstrato Β definido axiomaticamente, g, f : I x Β → X, p : βn+1 → X são funções apropriadas.
Title in English
Not available
Keywords in English
Not available
Abstract in English
In Ihis work we study some criteria for existence of sotutions almost periodic and asymptotically almost periodic for the sistems of abstract neural functional differential equations with unbounded delay modelled in the forms d/dt(x(t) + G (t, xt)) = Ax(t) + f(t, xt), t ∈ I = (-∞, a], x0' (t) + g(t, xt)) = Ax(t) + f(t, xt), t ∈ I = (-∞ a], x0 = p(φ, xt2, ... xtn) ∈ Β, x' (0) = q(φ , xt1, xt2, ...xtn), where A is the infinitesimal generator of a C0 -semigroup of linear operators on a Banach space X, A is the infinitesimal generator of a cosine famiily of linear operators, the history xt : (-∞, 0] → X, xt (θ) = x(t + θ), belongs to some abstract phase space Β defined axiomatically, g, f : I x Β → X, p: &Betan+1 → β and q : &Betan+1 → X are appropriate functions.
 
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Publishing Date
2017-12-18
 
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