Justice without force is powerless; force without justice is tyrannical.
by Blaise Pascal (1623-1662)

Convexity of torus-focus integrable systems

The following pdf file contains the slides of my talk on the convexity of integrable Hamiltonian systems with focus-focus singularities at the “Workshop on Integrable Systems and Applications”, IBS-CGP, Postech, 02 May 2018.