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arXiv 1005.2871math.AGmath.NT
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曲线的自同构与Weierstrass半群

Automorphisms of Curves and Weierstrass semigroups

Sotiris Karanikolopoulos, Aristides Kontogeorgis

摘要:

研究了Weierstrass半群与曲线的几个不变量的关系。对于具有群$G$的曲线的Galois覆盖,我们引入了$G$的群分解子群的一个新的滤子.在循环覆盖的情况下,研究了分歧过滤的关系。我们将我们的结果与Boseck定义的不变量,我们研究了一点分歧的情况。我们也给出了Hasse-Witt不变量和对称半群的应用。

英文摘要:

The relation of the Weierstrass semigroup with several invariants of a curve is studied. For Galois covers of curves with group $G$ we introduce a new filtration of the group decomposition subgroup of $G$. The relation to the ramification filtration is investigated in the case of cyclic covers. We relate our results to invariants defined by Boseck and we study the one point ramification case. We also give applications to Hasse-Witt invariant and symmetric semigroups.

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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