IGAP Geometry and Physics Seminar 13/04

[Christian]

>
> Dear everyone,
>
> Next *Tuesday April 13th at 11:00 (notice earlier time)* we will have 
> the fourth talk of the Geometry and Physics Webinar series:
>
> Speaker: Yasunori Lee (Tokyo U., IPMU)

> Title: Some comments on 6d global gauge anomalies
>
> Abstract: Given a G gauge theory, there can be global 
> (non-perturbative) gauge transformations under which the partition 
> function is not invariant. In 6d, relevant cases include G = SU(2), 
> SU(3), and G2, and the old computations utilizing homotopy groups 
> affirmed that the anomalous phases can indeed arise in all three 
> cases. On the other hand, from the modern point of view utilizing 
> bordism groups, there should not be such global gauge anomalies in the 
> first place. In this talk, I will describe how this apparent conflict 
> is resolved by carefully examining the cancellation of perturbative 
> gauge anomalies via 6d Green-Schwarz mechanism.

> The meeting will be on Zoom at the following coordinates:
>
> https://sissa-it.zoom.us/j/84054732508?pwd=eEE2b2h2cTU5Z2dpV0lqZUQwN3pTZz09 
> <https://sissa-it.zoom.us/j/84054732508?pwd=eEE2b2h2cTU5Z2dpV0lqZUQwN3pTZz09>
>
>
>
> or
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> Meeting ID: 840 5473 2508
>

> Passcode: igapgeophy
>
>
>
> See you there,
>
>
>
> The Organizers (Francesco Benini, Giulio Bonelli, Christian Copetti, 
> Pavel Putrov and Alessandro Tanzini)