Vendredi, 4 Mai, 2007 - 16:00
Prénom de l'orateur :
Alvaro
Nom de l'orateur :
PELAYO
Résumé :
I will present a classification of symplectic actions of 2-tori on
compact, connected symplectic 4-manifolds, up to equivariant
symplectomorphisms. The classification is in terms of a collection of
invariants of the topology of the manifold, of the torus action and of the
symplectic form. I will construct explicit models of such symplectic
manifolds with torus actions, defined in terms of these invariants. Some
results are joint with J.J. Duistermaat.
Institution de l'orateur :
Michigan
Thème de recherche :
Physique mathématique
Salle :
1 tour Irma