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GEODESIC: 作品数：109被引量：59H指数：4; 导出分析报告; 相关领域：理学更多>>; 相关作者：孙进平相桂芳詹曙王艳王卫星更多>>; 相关机构：北京航空航天大学杭州创新研究院北京航空航天大学合肥工业大学伦敦大学学院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金安徽省自然科学基金更多>>

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期刊=Science Bulletin

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Grassmann geometry on symmetric spaces: 《Chinese Science Bulletin》1999年第1期41-44,共4页JIN QuanqinDepartment of Mathematics, Hebei University, Baoding 071002, China Department of Mathematics, Nankai University, Tianjin 300071,China; A duality principle between Grassmann geometries on compact symmetric spaces and those on noncompact symmetric spaces is proved, which greatly facilitates the study of Grassmann geometry on symmetric spaces. Those Gra...; 关键词：SYMMETRIC spaces GRASSMANN GEOMETRY CARTAN decomposition orthogonal SYMMETRIC Lie algebra totally GEODESIC submanifold.

Geodesic uniqueness problem in infinite-dimensional Teichmuller spaces: 《Chinese Science Bulletin》1997年第15期1256-1261,共6页GUO HuiSchool of Mathematical Science, Peking University, Beijing 100871, China; LET[μ] be a point in a Teichmuller space T（Γ） and [μ]≠[0]. When T（Γ） is finite-di-mensional, the extremal Beltrami differential in [μ]is unique and the geodesic segment α:[tμ₀] （0≤t≤1） is th...; 关键词：infinite-dimensional Teichmiiller spaces GEODESIC segments extremal BELTRAMI DIFFERENTIALS Ahlfors’ (quasi- )N-class.

Bernstein theorem for harmonic morphisms from (N + 1)-sphere to N- manifold: 《Chinese Science Bulletin》1997年第1期11-14,共4页DONG YuxinDepartment of Mathematics, Hangzhou University, Hangzhou 310028, China; morphism. Harmonic morphisms may be characterized as harmonic mappings which are horizontally weakly conformal. In recent years a substantial progress has been made in the field of harmonic morphism, for example, refs...; 关键词：harmonic MORPHISM HOPF FIBRATION geodesic.

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