This work wassupported by the National Natural Science Foundation of China (Grant Nos. 19971075 and 10131020), SFZP and Lab. of Math, for Nonlinear Science, Fudan Univ.
We present a unified method for constructing generalized flag transformations of unitons intoa Lie group G via singular Darboux transformations. These flag transformations provide the possibility toestablish some fact...
By using the simplified method of factorization given by Valli, and the correspondence between the harmonic map φ∶S 2→U(N) and U(N) uniton bundle ν(φ) with energy corresponding to the bundles’ seco...
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...
he Special Funds for Major State Basic Ressarch Project of China (NonlinearScience), the National Natural Science Foundation o
Is the paper [2] the authors defined the singular Darboux transformations and established an explicit formula for constructing unitons from a simply connected Riemann surface. M to the group U(N). The formula is obtai...
Project supported by the Chinese National Research Project"Nonlinear Science",the Scientific Foundation of the National Education Commission of China and the Research Foundation of the Education Commission of Shanghai,the National Natural Science Foundat
Some new factorizations of unitons into Lie groups are established via singular Darboux transformations. The factorization processes for Grassmannian unitons are also considered. Furthermore, a purely algebraic method...