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Local Regularity of the Minimum Time Function

Abstract : We consider the minimum time problem of optimal control theory. It is well known that under appropriate controllability type conditions the minimum time function has an open domain of definition and is locally Lipschitz on it. Thus, it is differentiable almost everywhere on its domain. Furthermore, in general, it fails to be differentiable at points where there are multiple time optimal trajectories and its differentiability at a point does not guarantee continuous differentiability around this point. In this paper, however, we show that, under some regularity assumptions, the nonemptiness of proximal subdifferential of the minimum time function at a point implies its continuous differentiability on a neighborhood of this point.
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Contributor : Helene Frankowska Connect in order to contact the contributor
Submitted on : Tuesday, April 22, 2014 - 6:29:14 PM
Last modification on : Sunday, June 26, 2022 - 5:21:39 AM



Hélène Frankowska, Luong V. Nguyen. Local Regularity of the Minimum Time Function. Journal of Optimization Theory and Applications, Springer Verlag, 2015, 164, pp.68-91. ⟨10.1007/s10957-014-0575-x⟩. ⟨hal-00981788⟩



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