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arXiv 0903.5149math.AG
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关于Luroth四次曲面的超曲面

On the hypersurface of Luroth quartics

Giorgio Ottaviani, Edoardo Sernesi

摘要:

在平面四次曲线的射影空间中,Luroth四次曲线的超曲面的次数为54。我们给一个证明这一事实沿线概述的一份文件中的莫利,发表于1919年。2001年,Le Potier和Tikhomirov在射影平面上向量丛的模空间的背景下给出了另一个证明。Morley的证明使用平面四次曲线的描述作为Geiser对合的分支曲线,并对与非奇异三次曲面的Cremona六面体表示相关的36个平面给出了新的几何解释。

英文摘要:

The hypersurface of Luroth quartic curves inside the projective space of plane quartics has degree 54. We give a proof of this fact along the lines outlined in a paper by Morley, published in 1919. Another proof has been given by Le Potier and Tikhomirov in 2001, in the setting of moduli spaces of vector bundles on the projective plane. Morley's proof uses the description of plane quartics as branch curves of Geiser involutions and gives new geometrical interpretations of the 36 planes associated to the Cremona hexahedral representations of a nonsingular cubic surface.

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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