Large solutions for harmonic maps in two dimensions

Large solutions for harmonic maps in two dimensions
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二维谐波图的大型解决方案

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发表时间:
1983
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通讯作者:
J. Coron
J. Coron
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文献类型:
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作者:
H. Brezis;J. Coron

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本文寻找泛函E(u)= $$\mathop \smallint \limits_\Omega$$ |βu|其中Ω是Ω 2中的单位圆盘,u:Ω→S2满足边界条件u =γ.证明了当γ不是常数时,E存在不同于绝对极小值的局部极小值.我们更详细地讨论了γ(x,y)=(Rx,Ry, $$\sqrt {1 - R^2 }$$ )且R <1。
AbstractWe seek critical points of the functionalE(u)= $$\mathop \smallint \limits_\Omega$$ |βu|2, where Ω is the unit disk in ℝ2 andu:Ω→S2 satisfies the boundary conditionu=γ on ∂Ω. We prove that if γ is not a constant, thenE has a local minimum which is different from the absolute minimum. We discuss in more details the case where γ(x, y)=(Rx,Ry, $$\sqrt {1 - R^2 }$$ ) andR<1.