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arXiv 1102.1109math.AP
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随机奇异控制中Hamilton-Jacobi-Bellman方程的分析

Analysis of Hamilton-Jacobi-Bellman equations arising in stochastic singular control

Ryan Hynd

摘要:

研究了偏微分方程max{Lu-f,H(Du)}=0,其中u为未知函数,L为二阶椭圆算子,f为给定的光滑函数,H为凸函数.这是随机奇异控制中产生的Hamilton-Jacobi-Bellman方程的模型方程。我们建立了具有Holder连续梯度的狄利克雷问题的唯一黏性解的存在性。我们还证明了,如果H是一致凸的,这个解决方案的梯度是Lipschitz连续的。

英文摘要:

We study the partial differential equation max{Lu - f, H(Du)}=0 where u is the unknown function, L is a second-order elliptic operator, f is a given smooth function and H is a convex function. This is a model equation for Hamilton-Jacobi-Bellman equations arising in stochastic singular control. We establish the existence of a unique viscosity solution of the Dirichlet problem that has a Holder continuous gradient. We also show that if H is uniformly convex, the gradient of this solution is Lipschitz continuous.

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