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Negative second variations for problems with inequality control constraints

机译:具有不等式控制约束的问题的负二次方差

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摘要

In this paper we consider an optimal control problem posed over piecewise continuous controls and involving equality and/or inequality constraints in the control. It is well-known that, under strong normality assumptions, a certain quadratic form is nonnegative on a convex set of differentially admissible variations. We provide several examples illustrating the fact that, without assuming strong normality of a solution to the problem in hand, the result may fail to hold on the former and larger sets of admissible variations.
机译:在本文中,我们考虑了最优控制问题,该问题存在于分段连续控制上,并且涉及控制中的相等和/或不平等约束。众所周知,在强正态性假设下,某个二次形式在一组微分可容许变化的凸集上是非负的。我们提供了几个示例,说明了一个事实,即如果不假设对问题的解决方案具有很强的常态性,则结果可能无法保留先前的和较大的可接受变化集。

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