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PIN(2)-monopole Floer homology and the Rokhlin invariant

Part of: Low-dimensional topology Partial differential equations on manifolds; differential operators

Published online by Cambridge University Press:  08 November 2018

Francesco Lin
Francesco Lin*
Affiliation:
Department of Mathematics, Princeton University and Institute for Advanced Study, Princeton, NJ 08540, USA email fl4@math.princeton.edu
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Abstract

We show that the bar version of the $\text{Pin}(2)$-monopole Floer homology of a three-manifold $Y$ equipped with a self-conjugate spin$^{c}$ structure $\mathfrak{s}$ is determined by the triple cup product of $Y$ together with the Rokhlin invariants of the spin structures inducing $\mathfrak{s}$. This is a manifestation of mod $2$ index theory and can be interpreted as a three-dimensional counterpart of Atiyah’s classical results regarding spin structures on Riemann surfaces.

Keywords

monopole Floer homologyquaternionic operatorsRokhlin invariant

MSC classification

Primary: 57M27: Invariants of knots and 3-manifolds
Secondary: 58J20: Index theory and related fixed point theorems
Type
Research Article
Information
Compositio Mathematica , Volume 154 , Issue 12 , December 2018 , pp. 2681 - 2700
Copyright
© The Author 2018 

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