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math.DG2012
A Conformally Invariant Classification Theorem in Four Dimensions
Bing-Long Chen, Xi-Ping Zhu
In this paper, we prove a classification theorem of 4-manifolds according to some conformal invariants, which generalizes the conformally invariant sphere theorem of Chang-Gursky-Y…
math.DG2012★ 1 cited
Local pinching estimates in 3-dim Ricci flow
Bing-Long Chen, Guoyi Xu, Zhuhong Zhang
We study curvature pinching estimates of Ricci flow on complete 3- dimensional manifolds without bounded curvature assumption. We will derive some general curvature conditions whic…