总高斯曲率为 $6\pi$ 的 $\mathbb{R}^4_1$ 中完备平稳曲面
微分几何
2014-02-17 v2
摘要
在先前的一篇论文中,我们分类了 4 维 Lorentz 空间 中代数的且总高斯曲率为 的完备平稳曲面(即均曲率为零的类空曲面)。本文继续研究总高斯曲率为 的此类曲面。本文证明,此类曲面的拓扑类型必为 M\"obius 带。另一方面,我们展示了存在具有单个良好奇异端的新例子。
关键词
引用
@article{arxiv.1211.0657,
title = {Complete stationary surfaces in R^4_1 with total Gaussian curvature 6\pi},
author = {Xiang Ma},
journal= {arXiv preprint arXiv:1211.0657},
year = {2014}
}
备注
16 pages. The original proof of Lemma 4.1 is not correct because the Laurent series I used converges only locally; instead my new proof uses partial fraction decomposition which is always valid on the whole extended complex plane. Several math typos are corrected. A reference is removed. Accepted for publication on Differential Geometry and its Applications