In 1992, the physicist Pyragas proposed a time delayed feedback scheme to stabilize periodic solutions of ordinary differential equations. The feedback scheme (now known as "Pyragas control") has been adapted to symmetric systems whose symmetries can be described by groups. In this talk, we explore how Pyragas control can be adapted to systems with "unconventional symmetries", i.e., symmetries that cannot be described by groups. We do so in the context of a system of three coupled oscillators with "unconventional symmetries". For this example, we discuss what a Pyragas-like control scheme looks like and what the stabilization properties of this control scheme are. The contents of the talk are based upon joint work with Bob Rink (Free University Amsterdam).

Meeting number (access code): 2510 454 2868

Meeting password: siE4BfrSz53