摘要
利用准线的性质。
Characterisations are proved for those harmonic maps from S 2 into CP n or RP n with few higher order singularities to be antipodal symmetry and complementation,using properties of directrix curves.
出处
《北京大学学报(自然科学版)》
CAS
CSCD
北大核心
1997年第3期273-281,共9页
Acta Scientiarum Naturalium Universitatis Pekinensis