1,721,016 research outputs found

    The hidden symmetry of chiral fields and the Riemann-Hilbert problems, revisited (Studies on Integrable Systems : State of the Art and Perspective for Future)

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    We generalize the Ueno-Nakamura theory and Uhlenbeck-Segal theory for harmonic maps of Riemann surfaces into compact semi-simple Lie groups to those of (affine) harmonic maps into general Lie groups equipped with torsion free bi-invariant connection in terms of loop groups

    The Gauss maps of Demoulin surfaces with conformal coordinates In Memory of Professor Zhengguo Bai(1916-2015)

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    Demoulin surfaces in the real projective 3-space are investigated. Our result enables us to establish a generalized Weierstrass type representation for definite Demoulin surfaces by virtue of primitive maps into a certain semi-Riemannian 6-symmetric space
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