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arXiv 0708.2186math.AGmath-phmath.MP
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椭圆曲线上一类对数联络的单值性

Monodromy of a Class of Logarithmic Connections on an Elliptic Curve

Francois-Xavier Machu

摘要:

本文研究的对数联络是椭圆曲线亏格2重覆盖上线丛上正则联络的直接象。我们给出了所有这类联络的一个明确的参数化,确定了它们的单值性、微分伽罗瓦群以及它们的秩2向量丛。后者是描述在初等变换。它的(半)稳定性的问题得到解决。

英文摘要:

The logarithmic connections studied in the paper are direct images of regular connections on line bundles over genus-2 double covers of the elliptic curve. We give an explicit parametrization of all such connections, determine their monodromy, differential Galois group and the underlying rank-2 vector bundle. The latter is described in terms of elementary transforms. The question of its (semi)-stability is addressed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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