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Speaker:

Ramanujan Santharoubane
Date:

Thu, 2015-12-03 16:30 - 17:30
Location:

MPIM Lecture Hall
Parent event:

Oberseminar Differentialgeometrie I will show how from Witten-Reshetikhin-Turaev TQFT, we can produce

interesting representations of surface groups. The key fact is the

following : these "quantum representations" of surface groups have

infinite images but every simple loop acts with finite order. Using this

key fact and integral TQFT, we will see how to build regular finite covers

of surfaces where the integral homology is not generated by pullbacks of

simple closed curves on the base.

This talk represents joint work with T.Koberda.

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