arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1604.04877math.GT
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环面上Lefschetz纤维化的最小奇异纤维数

On the minimal number of singular fibers in Lefschetz fibrations over the torus

András I. Stipsicz, Ki-Heon Yun

摘要:

我们证明了环面上亏格- $g$ Lefschetz纤维化中奇异纤维$N(g,1)$的最小数目至少为$3$ .作为应用程序,我们展示了$N(g, 1) \in \{ 3, 4\}$ for $g\ge 5$、$N(g, 1) \in \{3, 4,5 \}$ for $g= 3, 4$和$N(2,1) = 7$。

英文摘要:

We show that the minimal number of singular fibers $N(g,1)$ in a genus-$g$ Lefschetz fibration over the torus is at least $3$. As an application, we show that $N(g, 1) \in \{ 3, 4\}$ for $g\ge 5$, $N(g, 1) \in \{3, 4,5 \}$ for $g= 3, 4$ and $N(2,1) = 7$.

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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