22 apr 2020 -- 17:00 [open in google calendar]
online
Abstract.
We will give an overview of the recent results stating how can one constructively slightly perturb a smooth vector field in order to make a given point periodic under the flow it produces (for nonwandering points this is the statements of the celebrated Pugh's closing lemma for dynamical systems), and relate this to classical questions in control theory of constructing explicitly the controls to reach the given point (or several points). Joint work with Sergey Kryzhevich.