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arXiv 1504.05239math.DG
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E(κ,τ)-空间中常中曲率图的高度和面积估计

Height and area estimates for constant mean curvature graphs in E(κ,τ)-spaces

José M. Manzano, Barbara Nelli

摘要:

通过寻找$\mathbb{E}(κ,τ)$中测地球体积的精确上界,得到了在具有$κ\leq 0$的$\mathbb{E}(κ,τ)$ -空间中常中曲率图的面积增长估计.我们主要研究完全图和具有零边界值的图。例如,我们证明了$\mathbb{E}(κ,τ)$中具有临界中曲率的整图至多具有立方本征面积增长。我们还获得了零边界值图的非本征面积增长的上界,并详细研究了一些杰出的例子,如不变曲面,$k$ -noids和理想Scherk图。最后给出了Heisenberg空间($κ=0$)中极小图的高度增长与面积增长之间的关系,并证明了这类极小图的Collin-Krust型估计.

英文摘要:

We obtain area growth estimates for constant mean curvature graphs in $\mathbb{E}(κ,τ)$-spaces with $κ\leq 0$, by finding sharp upper bounds for the volume of geodesic balls in $\mathbb{E}(κ,τ)$. We focus on complete graphs and graphs with zero boundary values. For instance, we prove that entire graphs in $\mathbb{E}(κ,τ)$ with critical mean curvature have at most cubic intrinsic area growth. We also obtain sharp upper bounds for the extrinsic area growth of graphs with zero boundary values, and study distinguished examples in detail such as invariant surfaces, $k$-noids and ideal Scherk graphs. Finally we give a relation between height and area growth of minimal graphs in Heisenberg space ($κ=0$), and prove a Collin-Krust type estimate for such minimal graphs.

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