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arXiv 2403.09934math.AGmath.AT
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Galois-Maximal 簇的对称积

Symmetric products of Galois-Maximal varieties

Javier Orts

AI总结:

本文证明有限 Galois-Maximal 空间的所有对称积仍为 Galois-Maximal,解决 Maximal 与 Galois-Maximal 曲线对称积问题,并给出空间刻画、Borel 上同调推广及相关上同调概念。

摘要:

本文的主要结果是证明了一个(有限)Galois-Maximal 空间的所有对称积同样是 Galois-Maximal 空间。这适用于实代数簇的特殊情形,解决了 Biswas 和 D'Mello 在文献中首次提出的、关于 Maximal 曲线对称积的问题,该问题随后由 Baird 在文献中推广到 Galois-Maximal 曲线。我们还给出了这些空间的刻画,并提出了一个可推广到更大空间类的新定义。然后,我们将文献中给出的基于 Borel 上同调的刻画推广到这一新族。最后,我们引入上同调稳定性和上同调分裂的概念,进行系统处理,并将它们与成为 Maximal 或 Galois-Maximal 空间的性质联系起来。这些上同调性质在我们主定理的证明中发挥了重要作用。

英文摘要:

The main result of this paper is the proof that all the symmetric products of a (finite) Galois-Maximal space are also Galois-Maximal spaces. This applies to the special case of real algebraic varieties, solving the problem first stated by Biswas and D'Mello in \cite{biswas&d'mello:symmetric_products_M-curves} about symmetric products of Maximal curves, and then generalised by Baird in \cite{baird:symmetric_products_GM-curves} to Galois-Maximal curves. We also give characterisations of these spaces and state a new definition that generalises to a larger class of spaces. Then, we extend the characterisation in terms of the Borel cohomology given in \cite{us} to the new family. Finally, we introduce the notion of cohomological stability and cohomological splitting, provide a systematic treatment and relate them with the properties of being a Maximal or Galois-Maximal space. These cohomological properties play an important role in the proof of our main theorem.

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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