节点文献
利用优化方法确定抛物型方程的未知系数
Identifying coefficient of the parabolic equation by using the optimization method
【摘要】 考虑在终端值已知的前提下重构二阶抛物型方程系数的反问题,此类反问题在许多应用科学领域具有重要意义.基于最优控制框架下,建立了控制泛函极小元的存在性和所满足的必要条件,并证明了相应的逼近解收敛于原问题的最优解.
【Abstract】 An inverse problem of identifying the coefficient of the parabolic equation is studied when the final observation is given.Such a problem has important application in large areas of applied science.Based on the optimal control framework,the existence and necessary condition of the minimizer for the control functional are established.It is proved that the corresponding approximate solutions converge to the optimal solution for the original problem.
【关键词】 反问题;
抛物型方程;
最优控制;
逼近解;
【Key words】 inverse problem; parabolic equation; optimal control; approximate solution;
【Key words】 inverse problem; parabolic equation; optimal control; approximate solution;
【基金】 国家自然科学基金(10572051);甘肃省自然科学基金(3ZS051-A25-030)资助项目.
- 【文献出处】 兰州大学学报(自然科学版) ,Journal of Lanzhou University(Natural Sciences) , 编辑部邮箱 ,2007年06期
- 【分类号】O175.2
- 【被引频次】4
- 【下载频次】128