In this note we comment on an error present in the recent and extensive literature on exact controllability of abstract control differential problems. Our observations are valid for first order, second order, integro-differential ...

Considerando-se as recentes decisões do Supremo Tribunal Federal no controle de constitucionalidade, percebe-se o movimento de sincretização entre os controles abstrato e concreto. A visão da atual jurisdição constitucional ...

PURPOSE: To evaluate the quality of abstracts of original non-experimental research articles in Brazilian Journals in Surgery. METHODS: Convenience sample of 471 abstracts of original research articles from six Brazilian ...

We show the results in Chalishajar [Controllability of mixed Volterra-Fredholm-type integro-differential systems in Banach space, J. Franklin Inst. 344(1) (2007) 12-21] and Chang and Chalishajar [Controllability of mixed ...

In this article the objective is commit about the subsystem of abstract control of constitutionality in the Brazilian constitutional legislation, theme not much studied that suggest interesting questions about it operation. ...

A la luz de los modelos presentes en el derecho alemán y la Directiva 93/13/ CEE, se analiza el modelo de apreciación de abusividad que establece el artículo 16 letra g) de la ley Nº 19.496. Se explica cómo parte de ...

In this paper we study the approximate controllability of control systems with states and controls in Hilbert spaces, and described by a second-order semilinear abstract functional differential equation with infinite delay. ...

ABSTRACT This paper considers a class of optimal control problems on time scales described by dynamic equations on time scales. For this class, the states are absolutely continuous. We have established sufficient conditions ...

Information-flow security typing statically prevents confidential information to leak to public channels. The fundamental information flow property, known as noninterference, states that a public observer cannot learn ...