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Geometry, Topology, and Physics Seminar, Spring 2018
Part of the NSF/UCSB ‘Research Training Group’ in Topology and Geometry
Organizers:
Dave Morrison and
Zhenghan Wang.
Meets 4:00 - 5:30 p.m.
on selected
Fridays in South Hall 6635.
Other Quarters: [
Fall, 2021;
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
]
| April 6 |
Dave Morrison (UCSB)
Abstract:
I will explain how geometry and supersymmetry are related to
the physics of Seiberg-Witten theory. The topological implications of
this physical theory will not be discussed.
Audio;
Lecture notes v1,
Lecture notes v2.
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| April 27 |
Dave Morrison (UCSB)
Abstract:
In March of 2017, I gave a preliminary discussion of the possible
limits of a sequence of Ricci-flat metrics on the K3 manifold. I
will now give a more thorough discussion of the problem, including recent
work of Hein-Song-Viaclovsky-Zhang.
Audio; Slides.
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| May 4 |
No meeting
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| May 11 |
Matt Brown (UCSB)
Abstract:
I will continue where Dave left off last time with the solution of Seiberg-Witten theory. The topological implications of the theory will still not be discussed.
Audio; Lecture notes.
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| May 18 |
Joint meeting with Differential Geometry seminar: 3:00 p.m.
Jeffrey A. Viaclovsky (UC Irvine)
Abstract:
I will discuss a new construction of families of Ricci-flat Kahler metrics on K3 surfaces which collapse to an interval, with Tian-Yau and Taub-NUT metrics occurring as bubbles. There is a corresponding singular fibration from the K3 surface to the interval, with regular fibers diffeomorphic to either 3-tori or Heisenberg nilmanifolds. This is joint work with Hans-Joachim Hein, Song Sun, and Ruobing Zhang.
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