Rigidity Theorems of Riemannian Manifold with ▽2Ric=0
Received:July 05, 1995  
Key Words: Ricci curvature tensor   Riemann curvature tensor   Einstein space   weyl conformal curvature tensor   scalar curvature.  
Fund Project:Priject supported by NNSFC and NECYSFC.
Author NameAffiliation
Xu Senlin Dept. of Math.
Univ. of Sci. and Tech. of China
Hefei 230026 
Mei Jiaqiang Dept. of Math.
Univ. of Sci. and Tech. of China
Hefei 230026 
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Abstract:
      Ricci curvature tensor is denoted by Ric. We study when the manifold which satisfy ▽2Ric=0 become a Einstein manifold or a space form.
Citation:
DOI:10.3770/j.issn:1000-341X.1998.01.001
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