发表机构
Fachbereich Mathematik, Universität Hamburg; Universität Hamburg(汉堡大学数学系; 汉堡大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文证明了在体积、直径和中间里奇曲率下界条件下,闭流形局部贝蒂数的消失定理,并推广至开流形的全局贝蒂数。
AI 中文摘要
我们证明了闭的、$n$维黎曼流形在具有下体积界、上直径界和下中间里奇曲率界的条件下,其局部贝蒂数的消失定理。这推广并插值了在截面曲率和里奇曲率下界下的已知结果。此外,这些方法可推广到开流形,从而得到全局贝蒂数的相应消失定理。
英文摘要
We prove a vanishing theorem for the local Betti numbers of closed, $n$-dimensional Riemannian manifolds with a lower volume bound, an upper diameter bound, and a lower intermediate Ricci curvature bound. This generalizes and interpolates between known results under lower sectional and Ricci curvature bounds. Moreover, the methods extend to open manifolds, yielding a corresponding vanishing theorem for the global Betti numbers.
Comments26 pages