arXiv 0908.16452009-08-12math.AG

Moduli of bundles over rational surfaces and elliptic curves II: non-simply laced cases

Naichung Conan Leung, Jiajin Zhang

备注：: To appear in International Mathematics Research Notices

英文摘要：

For any non-simply laced Lie group $G$ and elliptic curve $Σ$, we show that the moduli space of flat $G$ bundles over $Σ$ can be identified with the moduli space of rational surfaces with $G$-configurations which contain $Σ$ as an anti-canonical curve. We also construct $Lie(G)$-bundles over these surfaces. The corresponding results for simply laced groups were obtained by the authors in another paper. Thus we have established a natural identification for these two kinds of moduli spaces for any Lie group $G$.

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