Geometry and Topology Seminar 2019-2020: Difference between revisions

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The [[Geometry and Topology]] seminar meets in room '''B223 of Van Vleck Hall''' on '''Fridays''' from '''1:20pm - 2:10pm'''.
The [[Geometry and Topology]] seminar meets in room '''901 of Van Vleck Hall''' on '''Fridays''' from '''1:20pm - 2:10pm'''.
<br>  
<br>  
For more information, contact [http://www.math.wisc.edu/~kjuchukova Alexandra Kjuchukova] or [https://sites.google.com/a/wisc.edu/lu-wang/ Lu Wang] .
For more information, contact Shaosai Huang.


[[Image:Hawk.jpg|thumb|300px]]
[[Image:Hawk.jpg|thumb|300px]]


== Fall 2016 ==
 
== Fall 2018 ==


{| cellpadding="8"
{| cellpadding="8"
Line 13: Line 14:
!align="left" | host(s)
!align="left" | host(s)
|-
|-
|September 9
|TBA
| [http://www.math.wisc.edu/~bwang/ Bing Wang] (UW Madison)
|TBA
| [[#Bing Wang| "The extension problem of the mean curvature flow"]]
|TBA
| (Local)
|TBA
|-
|September 16
| [http://www.math.northwestern.edu/~weinkove/ Ben Weinkove] (Northwestern University)
| [[#Ben Weinkove| "Gauduchon metrics with prescribed volume form"]]
| Lu Wang
|-
|September 23
| Jiyuan Han (UW Madison)
| [[#Jiyuan Han| "Deformation theory of scalar-flat ALE Kahler surfaces"]]
| (Local)
|-
|September 30
|
|
|
|-
|October 7
| Yu Li (UW Madison) 
| [[#Yu Li| "TBA"]]
| (Local)
|-
|October 14
| [http://math.uchicago.edu/~seanpkh/ Sean Howe] (University of Chicago)
| [[#Sean Howe| "TBA"]]
| Melanie Matchett Wood
|-
|October 21
| [https://sites.google.com/site/mathnanli/ Nan Li] (CUNY) 
| [[#Nan Li| "TBA"]]
| Lu Wang
|-
|October 28
| Ronan Conlon
| [[#Ronan Conlon| "TBA"]]
| Bing Wang
|-
|November 4
| Jonathan Zhu (Harvard University)
| [[#Jonathan Zhu| "TBA"]]
| Lu Wang
|-
|'''November 7'''
| [http://www.massey.ac.nz/massey/expertise/profile.cfm?stref=339830 Gaven Martin] (University of New Zealand)
| [[#Gaven Martin| "TBA"]]
| Simon Marshall
|-
|November 11
|
|
|-
|November 18
| [http://www.math.uiuc.edu/~cuyanik2/ Caglar Uyanik] (Illinois)
| [[#Caglar Uyanik| "TBA"]]
| [http://www.math.wisc.edu/~rkent Kent]
|-
| Thanksgiving Recess
|
|
|
|-
|December 2
|Peyman Morteza (UW Madison)
| [[#Peyman Morteza| "TBA"]]
| (Local) 
|-
|December 9
|
|
|-
|December 16
|
|
|-
|-
|
|
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== Fall Abstracts ==
== Fall Abstracts ==


=== Ronan Conlon ===
=== TBA ===
''TBA''
 
=== Jiyuan Han ===
''Deformation theory of scalar-flat ALE Kahler surfaces''
 
We prove a Kuranishi-type theorem for deformations of complex structures on ALE Kahler surfaces. This is used to prove that for any scalar-flat Kahler ALE surfaces, all small deformations of complex structure also admit scalar-flat Kahler ALE metrics. A local moduli space of scalar-flat Kahler ALE metrics is then constructed, which is shown to be universal up to small diffeomorphisms (that is, diffeomorphisms which are close to the identity in a suitable sense). A formula for the dimension of the local moduli space is proved in the case of a scalar-flat Kahler ALE surface which deforms to a minimal resolution of \C^2/\Gamma, where \Gamma is a finite subgroup of U(2) without complex reflections.
 
=== Sean Howe ===
''TBA''
 
=== Nan Li ===
''TBA''
 
=== Yu Li ===
''TBA''
 
=== Gaven Marin ===
''TBA''
 
=== Peyman Morteza ===
''TBA''
 
=== Caglar Uyanik ===
''TBA''
 
=== Bing Wang ===
''The extension problem of the mean curvature flow''
 
We show that the mean curvature blows up at the first finite singular time for a closed smooth embedded mean curvature flow in R^3.
A key ingredient of the proof is to show a two-sided pseudo-locality property of the mean curvature flow, whenever the mean curvature is bounded.
This is a joint work with Haozhao Li.
 
=== Ben Weinkove ===
''Gauduchon metrics with prescribed volume form''
 
Every compact complex manifold admits a Gauduchon metric in each conformal class of Hermitian metrics. In 1984 Gauduchon conjectured that one can prescribe the volume form of such a metric.  I will discuss the proof of this conjecture, which amounts to solving a nonlinear Monge-Ampere type equation.  This is a joint work with Gabor Szekelyhidi and Valentino Tosatti.


=== Jonathan Zhu ===
''TBA''


== Archive of past Geometry seminars ==
== Archive of past Geometry seminars ==
2017-2018 [[Geometry_and_Topology_Seminar_2017-2018]]
<br><br>
2016-2017  [[Geometry_and_Topology_Seminar_2016-2017]]
<br><br>
2015-2016: [[Geometry_and_Topology_Seminar_2015-2016]]
2015-2016: [[Geometry_and_Topology_Seminar_2015-2016]]
<br><br>
<br><br>

Revision as of 15:51, 4 May 2018

The Geometry and Topology seminar meets in room 901 of Van Vleck Hall on Fridays from 1:20pm - 2:10pm.
For more information, contact Shaosai Huang.

Hawk.jpg


Fall 2018

date speaker title host(s)
TBA TBA TBA TBA

Fall Abstracts

TBA

Archive of past Geometry seminars

2017-2018 Geometry_and_Topology_Seminar_2017-2018

2016-2017 Geometry_and_Topology_Seminar_2016-2017

2015-2016: Geometry_and_Topology_Seminar_2015-2016

2014-2015: Geometry_and_Topology_Seminar_2014-2015

2013-2014: Geometry_and_Topology_Seminar_2013-2014

2012-2013: Geometry_and_Topology_Seminar_2012-2013

2011-2012: Geometry_and_Topology_Seminar_2011-2012

2010: Fall-2010-Geometry-Topology