Geometry and Topology Seminar: Difference between revisions

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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.
The [[Geometry and Topology]] seminar meets in room '''901 of Van Vleck Hall''' on '''Fridays''' from '''1pm - 2:20pm'''. For more information, contact Alex Waldron.
 
In the fall of 2020, we will hold '''online meetings''' on
[https://uwmadison.zoom.us/j/9457895762 Zoom platform] 
(available every '''Friday 1:00pm - 2:30pm''').
<br>




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== Fall 2020 ==
== Fall 2021 ==


{| cellpadding="8"
{| cellpadding="8"
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!align="left" | speaker
!align="left" | speaker
!align="left" | title
!align="left" | title
!align="left" | host(s)
|-
|-
|Oct. 23
|Sep. 10
|Yu Li (Stony Brook)
|
| On the ancient solutions to the Ricci flow
|Organizational meeting
|(Huang)
|-
|Sep. 17
|Alex Waldron
|Harmonic map flow for almost-holomorphic maps
|-
|Sep. 24
|Sean Paul
|
|-
|Oct. 1
|Andrew Zimmer
|
|-
|Oct. 8
|Laurentiu Maxim
|
|-
|Oct. 15
|Gavin Ball
|
|-
|Oct. 22
|Botong Wang
|
|-
|-
|Oct. 30
|Oct. 29
|Yi Lai (Berkeley)
|Brian Hepler
| TBA
|
|(Huang)
|-
|-
|Nov. 6
|Nov. 5
|Jiyuan Han (Purdue)
|Chenxi Wu
| TBA
|
|(Chen)
|-
|-
|TBA
|Nov. 12
|Max Hallgren (Cornell)
|Sigurd Angenent
| TBA
|
|(Huang)
|-
|-
|Dec. 4
|Yang Li (IAS)
| TBA
|(Chen)
|}
|}


== Fall Abstracts ==
== Fall Abstracts ==


===Yu Li===
===Alex Waldron===
Ancient solutions model the singularity formation of the Ricci flow.  In two and three dimensions, we currently have complete classifications for κ-noncollapsed ancient solutions, while the higher dimensional problem remains open. This talk will survey some recent developments of κ-noncollapsed ancient solutions with nonnegative curvature in higher dimensions.
 
I'll describe some history, recent results, and open problems about harmonic map flow, particularly in the 2-dimensional case.
 
 


== Archive of past Geometry seminars ==
== Archive of past Geometry seminars ==
2020-2021  [[Geometry_and_Topology_Seminar_2020-2021]]
<br><br>
2019-2020 [[Geometry_and_Topology_Seminar_2019-2020]]
2019-2020 [[Geometry_and_Topology_Seminar_2019-2020]]
<br><br>
<br><br>
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2011-2012: [[Geometry_and_Topology_Seminar_2011-2012]]
2011-2012: [[Geometry_and_Topology_Seminar_2011-2012]]
<br><br>
<br><br>
2010: [[Fall-2010-Geometry-Topology]]<br>
[[Fall-2010-Geometry-Topology]]<br>
[[Dynamics_Seminar_2020-2021]]
[[Dynamics_Seminar_2020-2021]]

Revision as of 14:58, 17 September 2021

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


Hawk.jpg


Fall 2021

date speaker title
Sep. 10 Organizational meeting
Sep. 17 Alex Waldron Harmonic map flow for almost-holomorphic maps
Sep. 24 Sean Paul
Oct. 1 Andrew Zimmer
Oct. 8 Laurentiu Maxim
Oct. 15 Gavin Ball
Oct. 22 Botong Wang
Oct. 29 Brian Hepler
Nov. 5 Chenxi Wu
Nov. 12 Sigurd Angenent



Fall Abstracts

Alex Waldron

I'll describe some history, recent results, and open problems about harmonic map flow, particularly in the 2-dimensional case.


Archive of past Geometry seminars

2020-2021 Geometry_and_Topology_Seminar_2020-2021

2019-2020 Geometry_and_Topology_Seminar_2019-2020

2018-2019 Geometry_and_Topology_Seminar_2018-2019

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

Fall-2010-Geometry-Topology

Dynamics_Seminar_2020-2021