Contractibility of the space of rational maps
成果类型:
Article
署名作者:
Gaitsgory, Dennis
署名单位:
Harvard University
刊物名称:
INVENTIONES MATHEMATICAE
ISSN/ISSBN:
0020-9910
DOI:
10.1007/s00222-012-0392-5
发表日期:
2013
页码:
91-196
关键词:
摘要:
We define an algebro-geometric model for the space of rational maps from a smooth curve X to an algebraic group G, and show that this space is homologically contractible. As a consequence, we deduce that the moduli space of G-bundles on X is uniformized by the appropriate rational version of the affine Grassmannian, where the uniformizing map has contractible fibers.
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