具有循环曲率的洛伦兹三维流形的齐性
微分几何
2012-11-06 v2
摘要
描述了 k=0,1,2 时的 k-曲率齐次三维 Walker 度规。这使得能够对局部齐次三维 Walker 度规进行完整描述,表明此类流形恰好存在三个等距类。作为应用,获得了所有具有循环曲率的局部齐次洛伦兹流形的完整描述。此外,在所有局部齐次流形中构造了势函数,从而产生了稳态梯度 Ricci 和 Cotton 孤子。
引用
@article{arxiv.1210.7764,
title = {Homogeneity of Lorentzian three-manifolds with recurrent curvature},
author = {E. Garcia-Rio and P. Gilkey and S. Nikcevic},
journal= {arXiv preprint arXiv:1210.7764},
year = {2012}
}
备注
We revised the paper in version 2 to correct a minor mistake in Remark 4.5; the essential mathematical content is unchanged but the original argument was slightly garbled