Rigidity of shrinking Ricci solitons

Rigidity of shrinking Ricci solitons
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DOI:
10.1007/s00209-010-0745-y
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发表时间:
2011-10
影响因子:
0.8
通讯作者:
M. Fernández-López;E. García‐Río
M. Fernández-López;E. García‐Río
中科院分区:
数学2区
文献类型:
--
作者:
M. Fernández-López;E. García‐Río

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我们证明了紧致Ricci孤子是刚性的当且仅当Weyl共形张量是调和的。在完全非紧情形下,我们证明了同样的结果,假设曲率张量至多指数增长,Ricci张量是有界的。
We show that a compact Ricci soliton is rigid if and only if the Weyl conformal tensor is harmonic. In the complete noncompact case we prove the same result assuming that the curvature tensor has at most exponential growth and the Ricci tensor is bounded from below.