Characteristic numbers of positively curved spin-manifolds with symmetry
Characteristic numbers of positively curved spin-manifolds with symmetry
复制标题
具有对称性的正弯曲自旋流形的特征数
DOI:
10.1090/s0002-9939-05-07928-1
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发表时间:
2005
期刊:
影响因子:
--
通讯作者:
Anand Dessai
中科院分区:
文献类型:
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作者:
Anand Dessai
Let M be a spin-manifold of positive sectional curvature and dimension > 8. Suppose a compact connected Lie group G acts smoothly on M. We show that the characteristic number A(M, TM) vanishes if G contains two commuting involutions acting isometrically on M.