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arXiv 2207.04769math.DG
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$M\times \mathbb{R}$中极小图的高斯曲率

Gaussian curvature of minimal graphs in $M\times \mathbb{R}$

David Kalaj

摘要:

本文考虑三维黎曼流形$M\times\mathbb{R}$中的极小图。我们主要估计这类曲面的高斯曲率。考虑平行平面上由两条Jordan曲线围成的极小圆盘和极小图。证明的关键是这些曲面通过$\wp-$调和映射的Weierstrass表示。我们还证明了黎曼曲面中测地圆盘间调和映射的Schwarz引理型结果和Heinz型结果。

英文摘要:

In this paper, we consider minimal graphs in the three-dimensional Riemannian manifold $M\times\mathbb{R}$. We mainly estimate the Gaussian curvature of such surfaces. We consider the minimal disks and minimal graphs bounded by two Jordan curves in parallel planes. The key to the proofs is the Weierstrass representation of those surfaces via $\wp-$harmonic mappings. We also prove some Schwarz lemma type results and some Heinz type results for harmonic mappings between geodesic disks in Riemannian surfaces.

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