中文摘要：

研究从连通复流形M到辛群Sp（N）的多重调和映射，将调和映射的结论推广到多重调和映射上，给出了相应的dressing作用和Backlund变换，并证明了任何一个辛-n-uniton可由O-uniton通过纯代数的方法显式构造．

英文摘要：

The pluriharmonic maps from a connected complex manifold M into a symplectic group Sp（N） are studied. Some results on harmonic maps are generalized to pluriharmonic maps and dressing action and symplectic Backlund transformations are introduced. Finally, it proves that any symplectic- n-uniton can be obtained from a O-uniton by purely algebraic operations.