arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0709.0438math.AG
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稳定映射Kontsevich空间的对数极小模型程序$\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$

Log Minimal Model Program for the Kontsevich Space of Stable Maps $\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$

Dawei Chen

摘要:

这部作品的灵感来自于与Izzet Coskun和Joe Harris的对话。我们对稳定映射的Kontsevich空间$\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$运行了log极小模型程序,并对在此过程中出现的所有中间空间给出了模解释.特别是,我们表明,希尔伯特计划$\mathcal H_{3,0,3}$的一个组成部分是翻转的$\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$在周品种。最后作为一个简单的推论,我们得到$\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$是Mori梦空间.

英文摘要:

This work is inspired by conversations with Izzet Coskun and Joe Harris. We run the log minimal model program for the Kontsevich space of stable maps $\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$ and give modular interpretations to all the intermediate spaces appearing in the process. In particular, we show that one component of the Hilbert scheme $\mathcal H_{3,0,3}$ is the flip of $\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$ over the Chow variety. Finally as an easy corollary we obtain that $\bar{\mathcal M}_{0,0}(\mathbb P^{3}, 3)$ is a Mori dream space.

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