Project supported by the National Natural Science Foundation of China (No.19531050);the Scientific Foundation of the Minnstr
By means of the theory of harmonic maps into the unitary group U(N), the authors study harmonic maps into the symplectic group Sp(N). The symplectic uniton and symplectic ex--tended uniton are introduced. The method o...
Project supported by the National Natural Science Foundation of China (Grant No. 19531050);the Special Foundation of the Chinese Academy of Sciences, Hong Kong Qiu-Shi Foundation;the Education Foundation of Tsinghua University.
Some homotopy classes of the unit spheres are explicitly represented by entire rational maps.
Project supported partially by the National Natural Science Foundation of China (Grant No. 19531050);the State Education Commission Foundation of China.
Two non-existence theorems on harmonic polynomial morphisms between Euclidean spaces have been shown.