https://ymsc.tsinghua.edu.cn/info/1056/3270.htm
Nonnegative Ricci curvature, nilpotency, and asymptotic geometry-清华大学数学科学中心
Abstract: The interplay between curvature and topology is always one of the central topics in Riemannian geometry. For open (noncompact and complete) manifolds...
ricci curvatureasymptotic geometrynonnegativenilpotency