Mathematics – Algebraic Geometry
Scientific paper
1997-05-07
Mathematics
Algebraic Geometry
24 pages, AMS-TeX, corrected proof of Proposition 3
Scientific paper
Let SU(r,d) be the moduli space of rank r, degree d vector bundles over a smooth projective curve of genus $g\ge 2$. If (r,d)=1 and d divides r+1, then SU is rational. Furthermore, if $0<\delta < r$ and all prime divisors of $\delta$ divide r, and if d divides $r-\delta$, then SU is rational. The proof is a variation on a result of Newstead and modifications due to Ballico and then Boden and Yokogawa.
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