2022/03/10 by Eric Chen, Chen, Eric, Guofang Wei +3
Mathematics · #Geometric Analysis and Curvature Flows #Geometric and Algebraic Topology #Geometry and complex manifolds #math.DG #msc:53C20 #msc:53C21 #msc:53E20
paper · pdf · doi:10.48550/arxiv.2203.05107
arxiv created 2022/03/10 · arxiv updated 2022/03/11
We employ the Ricci flow to derive a new theorem about Gromov almost flat manifolds, which generalizes and strengthens the celebrated Gromov--Ruh Theorem. In our theorem, the condition diam2 |K| ≤ εn in the Gromov--Ruh Theorem is replaced by the substantially weaker condition ‖Rm‖n/2 CS2 ≤ εn.