共 9 条
- [1] Calabi E., 1967, J DIFFER GEOM, V1, P111
- [2] CHERN S, TO BE PUBLISHED
- [3] DERHAM G, 1952, COMMENT MATH HELV, V0026, P00328, DOI [10.1007/BF02564308, DOI 10.1007/BF02564308]
- [5] Hsiang W-Y., 1967, J DIFFER GEOM, V1, P257, DOI 10.4310/jdg/1214428093
- [9] [No title captured]