Open Manifolds with Nonnegative Ricci Curvature and Large Volume Growth
Open Manifolds with Nonnegative Ricci Curvature and Large Volume Growth作者机构:Department of Mathematics Central China Normal University Wuhan 430079 China
出 版 物:《Chinese Quarterly Journal of Mathematics》 (数学季刊(英文版))
年 卷 期:2006年第21卷第4期
页 面:475-481页
核心收录:
学科分类:07[理学] 070104[理学-应用数学] 0701[理学-数学]
基 金:supported by the NNsF of china(10371047)
主 题:Excess function large volume growth nonnegative kth-Ricci curvature
摘 要:in this paper,we prove that a complete n-dimensional Riemannian manifold with nonnegative kth-Ricci curvature, large volume growth has finite topological type provided that lim r→∞{(vol[B(p.r]/ωnrn-αM)rk(n-1)/k+1(1-α/2)}≤for some COllstant ε〉0 We also prove that a conlplete Riemannian manifold with nonnegative kth-Ricci curvature and undler some pinching conditions is diffeomorphic to R^n.