关于$\mathbb{P}^3$吹胀的自同构
动力系统
2012-12-27 v2 代数几何
复变函数
摘要
设是沿光滑中心进行有限次吹胀的复合。我们证明,对于“几乎所有”这样的,如果,则其第一和第二动力次数相同。我们还构造了许多有限吹胀的例子,其自同构群只有有限多个连通分支。我们还提出了一个启发式论证,表明对于“一般”的紧Kähler流形(维数),自同构群只有有限多个连通分支。
引用
@article{arxiv.1202.4224,
title = {On automorphisms of blowups of $\mathbb{P}^3$},
author = {Tuyen Trung Truong},
journal= {arXiv preprint arXiv:1202.4224},
year = {2012}
}
备注
21 pages. Examples on blowups of $P^2\times P1$ and $P^1\times P^1\times P^1$ included. Combined with recent results of Bayraktar and Cantat, the heuristic argument in the previous version proves a stronger conclusion: For a "generic" compact Kahler manifold $X$ of dimension at least 3, $Aut(X)$ has only finitely many connected components