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DTSTAMP:20201027T190000Z
UID:1603461173402@events.msu.edu
CATEGORIES:Conferences / Seminars / Lectures
DTSTART:20201027T190000Z
DTEND:20201027T200000Z
SUMMARY:Math Seminar Series
DESCRIPTION:
Geometry and Topology\n
\n
Lenny Ng from Duke will
be speaking.\n
\n
The title is "Infinitely many
fillings through augmentations."\n
\n
Contact
Honghao Gao (gaohongh@msu.edu) for more information.\n
\n
The
event description is as follows:\n
An
interesting problem in contact topology
is to understand the Lagrangian surfaces
that fill a given Legendrian link in a contact
3-manifold. A key breakthrough this year is
that we now know some families of Legendrian
links that have infinitely many different fillings.
This is due to various work by Honghao
Gao, Linhui Shen, Daping Weng, and some people
who aren't currently at Michigan State,
and the common approach is through microlocal
sheaf theory and clusters. I'll describe a different,
Floer-theoretic approach to the same
sort of result, using augmentations of Legendrian
contact homology. The Floer approach recovers
some of the results from the sheaf approach
and also produces some new examples of
links with infinitely many fillings. This is
joint work in progress with Roger Casals.\n\n
Price: free\n
Sponsor: Department of Mathematics\n
Sponsor's Homepage: https://www.math.msu.edu/\n
Contact name: Department of Mathematics\n
Contact phone: (517) 353-0844\n
for more info visit the web at:\n
https://www.math.msu.edu/Seminars/CalendarView.aspx?month-of=September2016\n
LOCATION:Zoom link provided on Math Seminars page
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