Curvature, diameter and betti numbers
Curvature, diameter and betti numbers
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DOI:
10.1007/bf02566208
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发表时间:
1981-12
影响因子:
0.9
通讯作者:
M. Gromov
中科院分区:
文献类型:
--
作者:
M. Gromov
We give an upper bound for the Betti numbers of a compact Riemannian manifold in terms of its diameter and the lower bound of the sectional curvatures. This estimate in particular shows that most manifolds admit no metrics of non-negative sectional curvature.