演講者：戴佳原 教授

　　　　國立中興大學應用數學系

日　期：2022年4月1日（星期五）14:00

地　點：國立高雄大學理學院408室

講　題：Pattern-Selective Feedback Stabilization of Ginzburg-Landau Spiral Waves

線上演講：https://meet.google.com/dbs-qtxy-bqq （google Meet)

摘   要：

The complex Ginzburg-Landau equation serves as a paradigm of pattern formation. Within circular and spherical geometries, the existence and stability properties of Ginzburg-Landau spiral waves have been investigated extensively. However, many spiral waves are unstable and thereby rarely visible in experiments and numerical simulations. In this talk I illustrate how to selectively stabilize certain significant classes of unstable spiral waves. Our tool for stabilization is the symmetry-breaking control triple method, which generalizes the celebrated Pyragas control to the setting of PDEs. This is a joint work with Isabelle Schneider and Babette de Wolff.