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arXiv 0912.0341math.APmath.DG
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中曲率测度

The Mean Curvature Measure

Qiuyi Dai, Neil Trudinger, Xujia Wang

摘要:

我们给一个关于中曲率算子次调和的上连续函数赋予一个测度,使得当该函数光滑时,它与它的图的中曲率一致.我们证明了该测度是弱连续的,且关于几乎处处收敛。我们还建立了极小曲面方程的一个尖锐的Harnack不等式,这对于我们证明弱连续性是至关重要的。作为应用,当非齐次项为测度时,我们证明了相应的狄利克雷问题弱解的存在性.

英文摘要:

We assign a measure to an upper semicontinuous function which is subharmonic with respect to the mean curvature operator, so that it agrees with the mean curvature of its graph when the function is smooth. We prove that the measure is weakly continuous with respect to almost everywhere convergence. We also establish a sharp Harnack inequality for the minimal surface equation, which is crucial for our proof of the weak continuity. As an application we prove the existence of weak solutions to the corresponding Dirichlet problem when the inhomogeneous term is a measure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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