14.01.2026, 14:00 - 15:15
– Campus Golm, Building 9, Room 2.22 and via Zoom
Institutskolloquium
Getting to the chore of things
Christian Mercat (Claude Bernard University Lyon 1)
Yannik Thomas
Abstract: In this talk we study the spectral map of the Hamiltonians associated to quasi Sturmian dynamical systems. We describe a non-Euclidean metric on the parameter space which makes the spectral map Lipschitz continuous. Furthermore, we construct sequences for which these estimates can not be improved and show in this way optimality of more general continuity results.