An introduction to Spin^c structures

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• Marco Marengon (DPMMS)
• Friday 09 June 2017, 15:00-16:00
• MR13.

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Spin-c structures, which are a kind of complexification of Spin structures, turn out to be very useful in low-dimensional topology, especially when studying Heegaard Floer homology of 3-manifolds. However, the fact that there are several definitions of Spin-c structure, along with the fact that the proof of their equivalence is spread out on a number of Russian papers, can make it hard to understand them. After giving some motivations for Spin-c structures, I’ll try to go through some of the most popular definitions of them and to give an idea of why they are all equivalent.

This talk is part of the Junior Geometry Seminar series.

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