发表机构
Christian-Albrechts-Universität zu Kiel(基尔大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文证明具有曲率下界的有限维Alexandrov空间(包括截面曲率下界的完备黎曼流形)满足Besicovitch覆盖定理,方法是证明其在Federer意义下方向受限。
AI 中文摘要
我们证明,具有曲率下界(CBB)的有限维测地线局部紧致Alexandrov空间,特别是具有截面曲率下界的完备黎曼流形,通过证明它们在Federer意义上是方向受限的,满足Besicovitch覆盖定理。
英文摘要
We prove that finite-dimensional geodesic locally compact Alexandrov spaces with curvature bounded below (CBB), and in particular complete Riemannian manifolds with lower bounded sectional curvature, satisfy a Besicovitch covering theorem by showing that they are directionally limited in the sense of Federer.