TY - Acta mathematica scientia,Series B A1 - Guangzu CHEN, Xinyue CHENG T1 - ON (α, β)-METRICS OF CONSTANT FLAG CURVATURE Y1 - 2022-04-25 JF - Acta mathematica scientia, Series B JO - Acta mathematica scientia,Series B SP - 755 EP - 768 VL - 42 IS - 2 UR - http://121.43.60.238/sxwlxbB N1 - 10.1007/s10473-022-0220-y ER -