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arXiv 1503.04488math.DGmath.CV
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S2上的锥形里奇流收敛于孤子

Convergence of the conical Ricci flow on S2 to a soliton

D. H. Phong, Jian Song, Jacob Sturm, Xiaowei Wang

摘要:

在我们以前的工作[PSSW]中,我们证明了S^2上的初始度量为锥奇点\sum_{j=1}^k β_j[p_j]的里奇流收敛到具有锥奇点的常曲率度量(在稳定和半稳定情况下)或收敛到具有锥奇点的梯度收缩孤子(在不稳定情况下).本文的目的是证明在不稳定情况下,即β_k>β_k '= \s_{j<k} β_j的情况下,极限度规是唯一的具有锥奇异性的收缩孤子β_k[p_ \infty ]+β_k'[q_ \infty ].这证明了[PSSW]中的预测。

英文摘要:

In our previous work [PSSW], we showed that the Ricci flow on S^2 whose initial metric has conical singularities \sum_{j=1}^k β_j[p_j] converges to a constant curvature metric with conic singularities (in the stable and semi-stable cases) or to a gradient shrinking soliton with conical singularities (in the unstable case). The purpose of this note is to show that in the unstable case, that is, the case where β_k>β_k'=\s_{j<k}β_j, that the limiting metric is the unique shrinking soliton with cone singularity β_k[p_\infty]+β_k'[q_\infty]. This verifies the prediction made in [PSSW].

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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