共 24 条
- [1] [Anonymous], 1992, RIEMANNIAN GEOMETRY
- [5] CORREA R, 1992, P AM MATH SOC, V116, P67
- [7] DACRUZ JX, 2002, ACTA MATH HUNG, V94, P307
- [8] Fan LY, 2003, J MATH ANAL APPL, V279, P276, DOI [10.1016/S0022-247X(03)00009-X, 10.1016/SO022-247X(03)00009-X]