Morse-Novikov cohomology of almost nonnegatively curved manifolds
Morse-Novikov cohomology of almost nonnegatively curved manifolds
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几乎非负弯曲流形的莫尔斯-诺维科夫上同调
DOI:
10.1016/j.aim.2020.107249
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发表时间:
2019-04
影响因子:
1.7
通讯作者:
Xiaoyang Chen
中科院分区:
文献类型:
--
作者:
Xiaoyang Chen
Let M n be a closed manifold of almost nonnegative sectional curvature and nonzero first de Rham cohomology group. Using a topological argument, we show that the Morse-Novikov cohomology group H p (M n, θ) vanishes for any p and [θ]∈ H d R 1 (M n),[θ]≠ 0. Based on a new integral formula, we also show that a similar result holds for a closed manifold of almost nonnegative Ricci curvature under the additional assumption that its curvature operator is uniformly bounded from below.
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10.1090/s0273-0979-1988-15679-0
发表时间:
1988-10
影响因子:
1.3
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1969
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DOI:
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发表时间:
2011-05
期刊:
arXiv: Differential Geometry
影响因子:
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作者:
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通讯作者:
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