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arXiv 1007.0773math.AP
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凸包络的狄利克雷问题

The Dirichlet problem for the convex envelope

Luis Silvestre, Adam M. Oberman

摘要:

函数的凸包络最近被刻画为一个完全非线性偏微分方程(PDE)的解。在这篇文章中,我们研究了一个修改的问题:狄利克雷问题的基本偏微分方程。主要结果是一个最优的正则性结果。边界数据的可微性($C^{1,α}$正则性)意味着内部解的相应结果,尽管解不必连续到边界。次要的结果是凸包络的特征:(i)的值函数的随机控制问题,和(ii)的最佳低估一类非线性椭圆型偏微分方程。

英文摘要:

The Convex Envelope of a given function was recently characterized as the solution of a fully nonlinear Partial Differential Equation (PDE). In this article we study a modified problem: the Dirichlet problem for the underlying PDE. The main result is an optimal regularity result. Differentiability ($C^{1,α}$ regularity) of the boundary data implies the corresponding result for the solution in the interior, despite the fact that the solution need not be continuous up to the boundary. Secondary results are the characterization of the convex envelope as: (i) the value function of a stochastic control problem, and (ii) the optimal underestimator for a class of nonlinear elliptic PDEs.

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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