椭圆最优控制问题的可混合化间断Galerkin离散化的基于约束的平衡区域分解预条件子
A balancing domain decomposition by constraints preconditioner for a hybridizable discontinuous Galerkin discretization of an elliptic optimal control problem
AI总结:
本文针对椭圆分布最优控制问题,采用HDG方法进行离散化,并提出BDDC预条件子求解离散系统,建立了显式跟踪正则化参数的误差估计,且证明了预条件子对该参数具有鲁棒性。
AI中文摘要:
我们考虑了用于椭圆分布最优控制问题的可混合化间断Galerkin(HDG)方法,并提出了一个基于约束的平衡区域分解(BDDC)预条件子来求解离散系统。我们建立了HDG方法的误差估计,并显式跟踪了正则化参数$β$。我们观察到BDDC预条件子对$β$具有鲁棒性。数值结果被展示以支持我们的发现。
英文摘要:
We consider a hybridizable discontinuous Galerkin (HDG) method for an elliptic distributed optimal control problem and we propose a balancing domain decomposition by constraints (BDDC) preconditioner to solve the discretized system. We establish an error estimate of the HDG methods with explicit tracking of a regularization parameter $β$. We observe that the BDDC preconditioner is robust with respect to $β$. Numerical results are shown to support our findings.