容许 $\tilde G_2$-结构的流形
代数拓扑
2023-03-06 v2 微分几何
摘要
我们找到了紧 7-流形容许 -结构的充要条件。由此，我们得到了开 7-流形容许 -型闭 3-形式的充分条件。
引用
@article{arxiv.0704.0503,
title = {Manifolds admitting a $\tilde G_2$-structure},
author = {Hong-Van Le},
journal= {arXiv preprint arXiv:0704.0503},
year = {2023}
}
评论
4 pages, a new shorter exposition is given. the result has been included as Appendix in arXiv:1912.03338