The Newstead-Ramanan conjecture for Chern classes

Details The Newstead-Ramanan conjecture for Chern classes The Newstead-Ramanan conjecture for Chern classes

2005-12-21

arxiv.org/abs/math/0512486v1

Mathematics

Algebraic Geometry

7 pages, LaTeX

Scientific paper

Newstead and Ramanan conjectured the vanishing of the top (2g-1) Chern classes of the moduli space of stable, odd degree vector bundles of rank 2 on a Riemann surface of genus g. This was proved by Gieseker [G], while an analogue in rank 3 was recently settled by Kiem and Li [KL]. We generalise this to the vanishing of the top (g-1)r rational Chern classes of the moduli space M of stable principal bundles with semi-simple structure group of rank r, whenever M is a compact orbifold.

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