
Geometry, Topology, and Physics Seminar, Spring 2009
Organizers:
Andreas Malmendier
and Dave Morrison.
Meets 4:00  5:30 p.m. Fridays in South Hall 6635.
This quarter, due to the KITP workshop Fundamental Aspects of Superstring Theory, this seminar will only meet occasionally. Watch this space (or the email announcements) for information about upcoming seminars.
Other Quarters: [
Fall, 2020;
Spring, 2020;
Winter, 2020;
Fall, 2019;
Spring, 2018;
Winter, 2018;
Fall, 2017;
Spring, 2017;
Wnter, 2017;
Fall, 2016;
Spring, 2016;
Winter, 2016;
Fall, 2015;
Spring, 2015;
Winter, 2014;
Fall, 2013;
Fall, 2012;
Fall, 2011;
Winter, 2011;
Spring, 2010;
Winter, 2010;
Fall, 2009;
Spring, 2009;
Winter, 2009;
Fall, 2008;
Spring, 2008;
Winter, 2008;
Fall, 2007;
Spring, 2007;
Winter, 2007;
Fall, 2006
]
Apr. 10 
The seminar will meet at 3:00pm in SH 6617.
Ben Weinkove (UC San Diego)
The KählerRicci flow on Hirzebruch surfaces.
This talk will be a part of the
Differential Geometry Seminar.
Abstract: I will discuss the metric behavior of the KählerRicci flow on Hirzebruch
surfaces assuming that the initial metric is invariant under a maximal compact
subgroup of the automorphism group. I will describe how, in the sense of
GromovHausdorff, the flow either shrinks to a point, collapses to P^1 or contracts an
exceptional divisor. This confirms a conjecture of FeldmanIlmanenKnopf. This is a
joint work with Jian Song.
Audio [ mp3,
wma ];
Lecture notes.


