On Higher Eta-Invariants and Metrics of Positive Scalar Curvature
On Higher Eta-Invariants and Metrics of Positive Scalar Curvature
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关于更高的 eta 不变量和正标量曲率的度量
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
A. Moro
中科院分区:
文献类型:
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作者:
E. Leichtnam;P. Piazza;A. Moro
Let N be a closed connected spin manifold admitting one metric of positive scalar curvature. In this paper we use the higher eta-invariant associated to the Dirac operator on N in order to distinguish metrics of positive scalar curvature on N. In particular, we give sufficient conditions, involving π1(N) and dim N ,f orN to admit an infinite number of metrics of positive scalar curvature that are nonbordant.