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arXiv math/0603615math.DGmath.AP
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流形中不稳定的环型极小曲面

Unstable minimal surfaces of annulus type in manifolds

Hwajeong Kim

摘要:

不稳定的极小曲面是Dirichlet积分的不稳定的驻点。为了得到不稳定解,一般采用梯度流方法和极大极小原理。在\cite{s3}中给出了该方法在欧氏空间中极小曲面的应用。我们将这一理论推广到黎曼流形中获得不稳定的极小曲面。特别地,我们处理了环面型的极小曲面,即在黎曼流形中定义了两条$C^3$类的Jordan曲线,并证明了以这两条曲线为界的环面型的不稳定极小曲面的存在性.

英文摘要:

Unstable minimal surfaces are the unstable stationary points of the Dirichlet-Integral. In order to obtain unstable solutions, the method of the gradient flow together with the minimax-principle is generally used. The application of this method for minimal surfaces in the Euclidean spacce was presented in \cite{s3}. We extend this theory for obtaining unstable minimal surfaces in Riemannian manifolds. In particular, we handle minimal surfaces of annulus type, i.e. we prescribe two Jordan curves of class $C^3$ in a Riemannian manifold and prove the existence of unstable minimal surfaces of annulus type bounded by these curves.

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