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NATURALLY REDUCTIVE(α1, α2) METRICS
作者姓名:谭举  许明
作者单位:1. School of Microelectronics and Data Science, Anhui University of Technology;2. School of Mathematical Sciences, Capital Normal University
基金项目:supported by the National Natural Science Foundation of China (12131012, 12001007, 11821101);;the Beijing Natural Science Foundation (1222003,Z180004);;the Natural Science Foundation of Anhui province (1908085QA03);
摘    要:Letting F be a homogeneous(α1, α2) metric on the reductive homogeneous manifold G/H, we first characterize the natural reductiveness of F as a local f-product between naturally reductive Riemannian metrics. Second, we prove the equivalence among several properties of F for its mean Berwald curvature and S-curvature. Finally, we find an explicit flag curvature formula for G/H when F is naturally reductive.

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