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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Andre Henriques


PIRSA:18080042  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Welcome and Opening Remarks
Abstract:
Date: 13/08/2018 - 9:00 am

PIRSA:17030048  ( MP4 Medium Res , MP3 , PDF ) Which Format?
What Chern–Simons theory assigns to a point
Speaker(s): Andre Henriques
Abstract: By a celebrated theorem of Jacob Lurie, an extended TQFT is entirely determined by what it assigns to a point. It is natural to ask whether this theorem applies to TQFTs of physical interest. And, if yes, what do these theories assign to a point? In this talk, I will propose an answer for the case o... read more
Date: 01/03/2017 - 2:00 pm
Series: Colloquium

PIRSA:16040053  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The 576-fold Bott Periodicity of the Majorana fermions
Speaker(s): Andre Henriques
Abstract: Bott periodicity (1956) is a classical and old result in mathematics. Its easiest incarnation of which concerns Clifford algebras. It says that, up to Morita equivalence, the real Clifford algebras Cl_1(R), Cl_2(R), Cl_3(R), etc. repeat with period 8. A similar result holds for complex Clifford ... read more
Date: 06/04/2016 - 2:00 pm
Series: Colloquium

PIRSA:16040100  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The classification of chiral WZW models
Speaker(s): Andre Henriques
Abstract: I will explain how to axiomatize the notion of a chiral WZW model using the formalism of VOAs (vertex operator algebras). This class of models is in almost bijective correspondence with pairs (G,k), where G is a connected (not necessarily simply connected) Lie group and k in H^4(BG,Z) is a degree fo... read more
Date: 05/04/2016 - 11:00 am
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