3-manifold topology and the Donaldson-Witten partition function

Details 3-manifold topology and the Donaldson-Witten partition function 3-manifold topology and the Donaldson-Witten partition function

1998-11-25

arxiv.org/abs/hep-th/9811214v2

Nucl.Phys. B547 (1999) 569-598

Physics

High Energy Physics

High Energy Physics - Theory

35 pages, harvmac b-mode, 3 figures, minor result added

Scientific paper

10.1016/S0550-3213(99)00105-4

We consider Donaldson-Witten theory on four-manifolds of the form $X=Y \times {\bf S}^1$ where $Y$ is a compact three-manifold. We show that there are interesting relations between the four-dimensional Donaldson invariants of $X$ and certain topological invariants of $Y$. In particular, we reinterpret a result of Meng-Taubes relating the Seiberg-Witten invariants to Reidemeister-Milnor torsion. If $b_1(Y)>1$ we show that the partition function reduces to the Casson-Walker-Lescop invariant of $Y$, as expected on formal grounds. In the case $b_1(Y)=1$ there is a correction. Consequently, in the case $b_1(Y)=1$, we observe an interesting subtlety in the standard expectations of Kaluza-Klein theory when applied to supersymmetric gauge theory compactified on a circle of small radius.

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