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189 personnes travaillent au LJLL

86 permanents

80 chercheurs et enseignants-chercheurs permanents

6 ingénieurs, techniciens et personnels administratifs

103 personnels non permanents

74 doctorants

15 post-doc et ATER

14 émérites et collaborateurs bénévoles


Chiffres janvier 2022


Marco Mazzola

Lundi 17 décembre 2018

Marco Mazzola (Université Paris Sorbonne)

On the controllability of a set valued evolution.

Résumé :
We consider a controllability problem for the evolution of a set $\Omega(t)\subset\mathbbR^n$. This problem was originally motivated by a model where a dog controls a flock of sheep. Here, $\Omega(t)$ is the region occupied by the sheep and the position of the dog is regarded as a control function. We will discuss necessary conditions and sufficient conditions on the "scare function", for the global exact controllability of the problem. This result is closely related to the approximation of the trajectories of a sweeping process. This talk is based on a joint work with Alberto Bressan and Khai T. Nguyen.