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arXiv 2305.03346math.CO
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64阶Tits四边形的spread分类

Classification of spreads of Tits quadrangles of order 64

Giusy Monzillo, Tim Penttila, Alessandro Siciliano

AI总结:

本文结合已有表示方法、超卵形分类及二次锥flock分类,完成了64阶Tits四边形$T_2(\mathcal O)$所有spread的等价分类,补全了$q\le 64$时的相关分类结果。

摘要:

Brown等人给出了Tits四边形$T_2(\mathcal O)$(其中$\mathcal O$是$\mathrm PG(2,q)$的卵形线,$q$为偶数)的spread的一种表示,该表示借助$\mathrm PG(2,q)$的某一族$q$条卵形线实现。本文将该表示与Vandendriessche对$\mathrm PG(2,64)$中超卵形的分类,以及作者近期给出的$\mathrm PG(3,64)$中二次锥的flock分类相结合,在等价意义下对$T_2(\mathcal O)$($\mathcal O$为$\mathrm PG(2,64)$的卵形线)的所有spread完成了分类。这些结果完善了$q\le 64$时$T_2(\mathcal O)$的spread分类工作。

英文摘要:

Brown et al. provide a representation of a spread of the Tits quadrangle $T_2(\mathcal O)$, $\mathcal O$ an oval of $\mathrm PG(2,q)$, $q$ even, in terms of a certain family of $q$ ovals of $\mathrm PG(2,q)$. By combining this representation with the Vandendriessche classification of hyperovals in $\mathrm PG(2,64)$ and the classification of flocks of the quadratic cone in $\mathrm PG(3,64)$, recently given by the authors, in this paper, we classify all the spreads of $T_2(\mathcal O)$, $\mathcal O$ an oval of $\mathrm PG(2,64)$, up to equivalence. These complete the classification of spreads of $T_2(\mathcal O)$ for $q\le 64$.

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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