Special Session 112: Controllability and Stabilization of Partial Differential Equations

Feedback stabilization of entropy solutions to the p-system at a junction
Nicola N De Nitti
EPFL
Switzerland
Co-Author(s):    G. M. Coclite, M. Garavello, F. Marcellini.
Abstract:
We consider the p-system in Eulerian coordinates on a star-shaped network. Under suitable transmission conditions at the junction and dissipative boundary conditions in the exterior vertices, we show that the entropy solutions of the system are exponentially stabilizable. Our proof extends the strategy by Coron et al. (2017) and is based on a front-tracking algorithm used to construct approximate piecewise constant solutions whose BV norms are controlled through a suitable exponentially-weighted Glimm-type Lyapunov functional. This talk is based on a joint work with G. M. Coclite, M. Garavello, and F. Marcellini.