Paolo Maria Santini
(Universita di Roma La Sapienza, Italy)

The transition from regular to irregular motions as travel on a Riemann surface
(joint work with F. Calogero, D. Gomez-Ullate, M. Sommacal)

We introduce a 3-body problem in the plane providing the prototype of a mechanism explaining the transition from regular to irregular motions as travel on Riemann surfaces.