| Talk_id | Date | Speaker | Title |
|
29103
|
Tuesday 9/7
4:00 PM
|
Sucharit Sarkar, UCLA
|
Link Floer spectrum via grid diagrams
- Sucharit Sarkar, UCLA
- Link Floer spectrum via grid diagrams
- 09/07/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
Link Floer homology of links in S^3 can be computed as the homology of a grid chain complex defined using grid diagrams. I will describe a construction of a CW spectrum whose cells correspond to the generators of the grid chain complex, and whose cellular chain complex is the grid chain complex (and therefore, the homology is link Floer homology). This is joint with Ciprian Manolescu.
|
|
29101
|
Tuesday 9/14
4:00 PM
|
Peter Johnson, UVA
|
A zero surgery obstruction from involutive Heegaard Floer homology
- Peter Johnson, UVA
- A zero surgery obstruction from involutive Heegaard Floer homology
- 09/14/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
A fundamental result in 3-manifold topology due to Lickorish and Wallace says that every closed oriented connected 3-manifold can be realized as surgery on a link in the 3-sphere. One may therefore ask: which 3-manifolds can be obtained by surgery on a link with a single component, i.e. a knot, in the 3-sphere? More specifically, one can ask: which 3-manifolds are obtained by zero surgery on a knot in the 3-sphere? In this talk, we give a brief outline of some known results to this question in the context of small Seifert fibered spaces. We then sketch a new method, using involutive Heegaard Floer homology, to show that certain 3-manifolds cannot be obtained by zero surgery on a knot in the three sphere. In particular, we produce a new infinite family of weight 1 irreducible small Seifert fibered spaces with first homology Z which cannot be obtained by zero surgery on a knot in the 3-sphere, extending a result of Hedden, Kim, Mark and Park.
|
|
29119
|
Tuesday 9/28
4:00 PM
|
Peng Zhou, Berkeley
|
Homological Mirror Symmetry for A_n-type cluster varieties
- Peng Zhou, Berkeley
- Homological Mirror Symmetry for A_n-type cluster varieties
- 09/28/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
TBA
|
|
29105
|
Tuesday 10/5
4:00 PM
|
Daniel López Neumann, Indiana University
|
TBA
- Daniel López Neumann, Indiana University
- TBA
- 10/05/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
TBA
|
|
29113
|
Tuesday 10/12
4:00 PM
|
Ka Ho Wong, Texas A&M University
|
TBA
- Ka Ho Wong, Texas A&M University
- TBA
- 10/12/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
TBA
|
|
29112
|
Tuesday 10/19
4:00 PM
|
Francis Bonahon, USC
|
TBA
|
|
29108
|
Tuesday 10/26
4:00 PM
|
Break day, no talk
|
TBA
- Break day, no talk
- TBA
- 10/26/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
- Honghao Gao (gaohongh@msu.edu)
TBA
|
|
29106
|
Tuesday 11/2
4:00 PM
|
James Hughes, UC Davis
|
TBA
|
|
29111
|
Tuesday 11/9
4:00 PM
|
Mike Wong, Dartmouth
|
TBA
|
|
29117
|
Tuesday 11/16
4:00 PM
|
Anastasiia Tsvietkova, Rutgers
|
TBA
- Anastasiia Tsvietkova, Rutgers
- TBA
- 11/16/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
TBA
|
|
29124
|
Tuesday 11/23
4:00 PM
|
Vijay Higgins, MSU
|
TBA
|
|
29115
|
Tuesday 12/14
4:00 PM
|
Yu-Shen Lin, Boston University
|
TBA
- Yu-Shen Lin, Boston University
- TBA
- 12/14/2021
- 4:00 PM - 5:00 PM
- Online (virtual meeting)
(Virtual Meeting Link)
- Honghao Gao (gaohongh@msu.edu)
TBA
|
