[CvGmt News] rettifica seminario 25/6
castorin at mat.uniroma2.it
Tue Jun 18 14:17:19 CEST 2013
Chiedo scusa ma devo rettificare il giorno del seminario è il 25/6 non
il 28/6 come erroneamente indicato nel precedente messaggio. Quindi
ripeto l'annuncio scusandomi per l'errore:
Martedi' 25 Giugno 2013, h 14:30, Aula D' Antoni
Simon Brendle (Stanford University, USA)
"Ricci flow and the sphere theorem in Riemannian geometry."
In 1926, Hopf showed that every compact, simply connected manifold
with constant curvature 1 is isometric to the standard round sphere.
Motivated by this result, Hopf posed the question whether a compact,
simply connected manifold with sufficiently pinched curvatured must
be a sphere topologically. This question has been studied by many
authors during the past decades, a milestone being the topological
sphere theorem of Berger and Klingenberg. I will discuss the history
of this problem and sketch the proof of the Differentiable Sphere
Theorem (obtained in joint work with Schoen in 2007). The proof
relies on the Ricci flow method pioneered by Richard Hamilton.
Dipartimento di Matematica - Studio 1221
Università di Roma "Tor Vergata"
Via della Ricerca Scientifica 00133 Roma
email: castorin at mat.uniroma2.it
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