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在调和映射空间上的Dressing作用
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作者 彭家贵 焦晓祥 《中国科学院研究生院学报》 CAS CSCD 2000年第1期8-13,共6页
得到Dressing作用的一些性质 ,证明标准的n uniton扩张解在Dressing作用下仍然是标准的n uniton扩张解 ,因而Dressing作用保持有限调和映射的极小uniton数不变 (后面的结论已被Guest和Ohnita证明 ) .特别证明对于全纯映射 ,Dressing作... 得到Dressing作用的一些性质 ,证明标准的n uniton扩张解在Dressing作用下仍然是标准的n uniton扩张解 ,因而Dressing作用保持有限调和映射的极小uniton数不变 (后面的结论已被Guest和Ohnita证明 ) .特别证明对于全纯映射 ,Dressing作用仅与群元素在零点值有关 .此性质表明Loop群在全纯映射上的作用与复线性群在复Grassman nians上的标准作用是等价的 . 展开更多
关键词 扩张解 Dressing作用 调和映射空间 全纯映射 Loop群
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Stability for F-Harmonic Maps
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作者 刘建成 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2007年第3期339-343,共5页
In this paper, the author discusses the stable F-harmonic maps, and obtains the Liouville-type theorem for F-harmonic maps into δ-pinched manifolds, which improves the ones in [3] due to M Ara.
关键词 F-harmonic map STABILITY δ-pinched manifold
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On regularizing-rate estimates for solutions to the heat flow with initial value problem
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作者 WANG Meng LIU XiaoFeng 《Science China Mathematics》 SCIE 2013年第3期653-664,共12页
For a compact Riemannian manifold NRK without boundary, we establish the existence of strong solutions to the heat flow for harmonic maps from Rn to N, and the regularizing rate estimate of the strong solutions. Moreo... For a compact Riemannian manifold NRK without boundary, we establish the existence of strong solutions to the heat flow for harmonic maps from Rn to N, and the regularizing rate estimate of the strong solutions. Moreover, we obtain the analyticity in spatial variables of the solutions. The uniqueness of the mild solutions in C([0,T]; W1,n) is also considered in this paper. 展开更多
关键词 heat flow REGULARITY GRADIENT mild solution ANALYTICITY
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WEIERSTRASS REPRESENTATION FORSURFACES WITH PRESCRIBED NORMALGAUSS MAP AND GAUSS CURVATURE IN H^3
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作者 SHISHUGUO 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2004年第4期567-586,共20页
The author obtains a Weierstrass representation for surfaces with prescribed normal Gauss map and Gauss curvature in H3. A differential equation about the hyperbolic Gauss map is also obtained, which characterizes the... The author obtains a Weierstrass representation for surfaces with prescribed normal Gauss map and Gauss curvature in H3. A differential equation about the hyperbolic Gauss map is also obtained, which characterizes the relation among the hyperbolic Gauss map, the normal Gauss map and Gauss curvature. The author discusses the harmonicity of the normal Gauss map and the hyperbolic Gauss map from surface with constant Gauss curvature in H3 to S2 with certain altered conformal metric.Finally, the author considers the surface whose normal Gauss map is conformal and derives a completely nonlinear differential equation of second order which graph must satisfy. 展开更多
关键词 Hyperbolic space Hyperbolic Gauss map Normal Gauss map Weier-strass representation Harmonic map
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