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Nonlinear integrodifferential equations in a Banach space

Authors: Mitidieri, Enzo; Vrabie, Ioan I.;

Nonlinear integrodifferential equations in a Banach space

Abstract

Si prova un risultato di esistenza per una classe di equazioni integrodifferenziali del tipo \[ \left[u'(t)+Au(t)\right]\cap\int_{0}^{t}k(t-s)F(s,u(s))ds\neq\textrm{Ø},0\leq t\leq T \] \[ u(0)=u_{0} \] dove A è un operatore m-accretivo su uno spazio di Banach reale x con risolvente (I+$\lambda$a)$^{-1}$ compatto per ogni $\lambda$>0, k:$\left[0,T\right]$$\rightarrow L(X)$ è un nucleo operatoriale ed F: $\left[0,T\right]$ $\times$D(A)$\rightarrow2^{x}$ è una applicazione multivoca soddisfacente ed una certa condizione di continuità.

We prove an existence result for a class of integrodifferential equations of the form \[ \left[u'(t)+Au(t)\right]\cap\int_{0}^{t}k(t-s)F(s,u(s))ds\neq\textrm{Ø},0\leq t\leq T \] \[ u(0)=u_{0} \] where A is an m-accretive operator acting in a real Banach space x with (I+$\lambda$a)$^{-1}$ compact for each $\lambda$>0, k:$\left[0,T\right]$$\rightarrow L(X)$ is a C$^{1}$operator kernel and F: $\left[0,T\right]$ $\times$D(A)$\rightarrow2^{x}$ is a multivalued mapping satisfying a certain continuity condition.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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