Betti numbers of the moduli space of rank 3 parabolic Higgs bundles
arXiv:math/0411242
Abstract
We compute the Betti numbers of the moduli space of rank 3 parabolic Higgs bundles, using Morse theory. A key point is that certain critical submanifolds of the Morse function can be identified with moduli spaces of parabolic triples. These moduli spaces come in families depending on a real parameter and we study their variation with this parameter.
78 pages. Extended version. Added a section with the fixed determinant case. To appear in Memoirs of the AMS