Celestin A. Nse  , Anthony N. Eke  , 
    Optimal Control of Neutral Systems with Nonlinear Base (The Maximum Principle Perspective),
    Journal of Engineering and Applied Sciences,
    Volume 2,Issue 7,
    2007,
    Pages 1236-1239,
    ISSN 1816-949x,
    jeasci.2007.1236.1239,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2007.1236.1239)
    Abstract: In this research we examine the Euclidean controllability for a neutral system with a nonlinear base given by
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By a careful analysis of the maximum principle, necessary and sufficient conditions for the existence and uniqueness of optimal controls are deduced. This work is a great improvement of existing works providing a relationship between the attainable and reachable sets.
    Keywords: Optimal control;netural system;nonlinear base;perspective