Moduli of bundles over rational surfaces and elliptic curves I: simply laced cases

Details Moduli of bundles over rational surfaces and elliptic curves I: simply laced cases Moduli of bundles over rational surfaces and elliptic curves I: simply laced cases

2009-06-21

arxiv.org/abs/0906.3900v2

Mathematics

Algebraic Geometry

22 pages, 6 figures

Scientific paper

It is well-known that del Pezzo surfaces of degree $9-n$ one-to-one correspond to flat $E_n$ bundles over an elliptic curve. In this paper, we construct $ADE$ bundles over a broader class of rational surfaces which we call $ADE$ surfaces, and extend the above correspondence to all flat $G$ bundles over an elliptic curve, where $G$ is any simply laced, simple, compact and simply-connected Lie group. In the sequel, we will construct $G$ bundles for non-simply laced Lie group $G$ over these rational surfaces, and extend the above correspondence to non-simply laced cases.

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