BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Singular integral affine structures of focus-focus singularities
DTSTART:20130325T171500
DTEND:20130325T180000
DTSTAMP:20260415T184034Z
UID:ae11f5ce159f83af712968e3625a96728dd58cb88cd07ab3b6aed4ce
CATEGORIES:Conferences - Seminars
DESCRIPTION:Daniele Sepe (IST Lisbon)\nHamiltonian Dynamics SeminarAbstrac
 t: The Liouville-Arnold theorem gives the existence of local action-angle 
 coordinates near regular orbits of a completely integrable Hamiltonian sys
 tem. The global counterpart to action variables is an integral affine stru
 cture\, as observed by Duistermaat and Nekhoroshev independently. In this 
 talk\, we shall introduce a notion of singular integral affine structures 
 (still smooth in some sense) for focus-focus singularities\, which have re
 cently come to the fore for their topological\, geometric and symplectic p
 roperties. This is joint work in progress with Rui Loja Fernandes.
LOCATION:MA A3 30
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR