[Turkmath:6059] FGC-Higher Structures Seminars::Theo Johnson-Freyd::April.11.2023 at 18:00 (Istanbul time)

[kazimilhan.ikeda]

Dear friends,

This coming week, on Tuesday, our speaker is Theo Johnson-Freyd from the 
Perimeter Institute
for Theoretical Physics.

The seminar talk details are as follows:

Speaker: Theo Johnson-Freyd (Perimeter Institute for Theoretical 
Physics).
Date: April 11, 2023, Tuesday.
Time: 18:00 Istanbul local time; 11:00 Waterloo, Ontario local time; 
17:00 Munich local time.
Title: Higher algebraic closure

Abstract:
Deligne's work on Tannakian duality identifies the category sVec of 
super vector spaces as the "algebraic closure" of the category Vec of 
vector spaces (over C). I will describe my construction, joint with 
David Reutter, of the higher-categorical analog of sVec: the algebraic 
closure of the n- category of "n-vector spaces". The construction mixes 
ideas from Galois theory, quantum physics, homotopy theory, and fusion 
category theory. Time permitting, I will describe the higher-categorical 
Galois group, which turns out to have a surgery-theoretic description 
through which it is almost, but not quite, the group PL.

Zoom link details:
Please join Zoom Meeting, which will be active on Tuesday, April 11, 
2023 at 17:45 (Istanbul local time)/10:45 (Waterloo, Ontario local 
time)/16:45 (Munich local time):

https://ozyegin-edu-tr.zoom.us/j/96956596842?pwd=cDNHQy8vR0lkMk8velhGZDdzU1p1UT09

Meeting ID: 969 5659 6842
Passcode: 442777

Best Regards,
K. Ilhan Ikeda
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