Journal of Differential Geometry

The integer valued SU(3) Casson invariant for Brieskorn spheres

Hans U. Boden, Christopher M. Herald, and Paul A. Kirk

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We develop techniques for computing the integer valued SU(3) Casson invariant defined in [6]. Our method involves resolving the singularities in the flat moduli space using a twisting perturbation and analyzing its effect on the topology of the perturbed flat moduli space. These techniques, together with Bott-Morse theory and the splitting principle for spectral flow, are applied to calculate τSU(3)(Σ) for all Brieskorn homology spheres.

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J. Differential Geom., Volume 71, Number 1 (2005), 23-83.

First available in Project Euclid: 29 March 2006

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Boden, Hans U.; Herald, Christopher M.; Kirk, Paul A. The integer valued SU(3) Casson invariant for Brieskorn spheres. J. Differential Geom. 71 (2005), no. 1, 23--83. doi:10.4310/jdg/1143644312.

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