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Optimal Boundary Control Method for Domain Decomposition Algorithm
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作者 闫桂峰 冯恩民 《Journal of Beijing Institute of Technology》 EI CAS 2000年第2期113-119,共7页
To study the domain decomposition algorithms for the equations of elliptic type, the method of optimal boundary control was used to advance a new procedure for domain decomposition algorithms and regularization method... To study the domain decomposition algorithms for the equations of elliptic type, the method of optimal boundary control was used to advance a new procedure for domain decomposition algorithms and regularization method to deal with the ill posedness of the control problem. The determination of the value of the solution of the partial differential equation on the interface——the key of the domain decomposition algorithms——was transformed into a boundary control problem and the ill posedness of the control problem was overcome by regularization. The convergence of the regularizing control solution was proven and the equations which characterize the optimal control were given therefore the value of the unknown solution on the interface of the domain would be obtained by solving a series of coupling equations. Using the boundary control method the domain decomposion algorithm can be carried out. 展开更多
关键词 domain decomposition methods(ddm) boundary control regularization coupling equations
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区域分解算法边界控制近似方法 被引量:2
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作者 闫桂峰 冯恩民 《大连理工大学学报》 CAS CSCD 北大核心 2001年第1期16-19,共4页
采用最优控制的方法解决区域分解算法中内交界面上方程解的值的确定问题. 将确定内交界面值的问题转化为边界控制问题,为克服控制问题的不适定性引入了正则化方法,证明了正则最优边界的存在性和收敛性,给出了表征最优边界的耦合方程组.
关键词 自由边界 区划 正则化 区域分解算法 偏微分方程
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