RT Journal T1 NEW NON-NATURALLY REDUCTIVE EINSTEIN METRICS ON Sp(n) A1 张绍祥, 陈慧斌, 邓少强 PB 数学物理学报(英文版) FD 2021-06-25 YR 2021 JF Acta Mathematica Scientia JO 数学物理学报(英文版) VO 41 IS 3 SP 887 DO 10.1007/s10473-021-0315-x K1 Einstein metric;non-naturally reductive metric;compact Lie group;symplectic group LK {http://121.43.60.238/sxwlxbB/CN/article/article_16402.shtml}