共 26 条
[1]
ALEXANDROV AD, 1958, AM MATH SOC T 2, V21, P412
[3]
Delaunay C., 1841, J MATH PURES APPL SE, V1, P309
[4]
DONALDSON SK, 1983, J DIFFER GEOM, V18, P269
[5]
Eisenhart L. P., 1909, TREATISE DIFFERENTIA
[6]
Gilbarg D., 1983, ELLIPTIC PARTIAL DIF
[7]
HOPF H, LECTURES DIFFERENTIA
[8]
HSIANG WY, 1982, J DIFFER GEOM, V17, P337
[9]
Jellett M.J.-H., 1853, J MATH PURE APPL, V18, P163