A statistical approach to the cauchy problem for the Laplace equation

被引:8
|
作者
Golubev, G [1 ]
Khasminskii, R [1 ]
机构
[1] Univ Aix Marseille 1, Ctr Math & Informat, F-13453 Marseille, France
关键词
ill-posed problems; statistical approach; asymptotically minimax estimator;
D O I
10.1214/lnms/1215090081
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
We study the problem of estimating an unknown solution of the Cauchy problem for the Laplace equation, with L-2-norm loss, when the initial conditions are observed in a white Gaussian noise with a small spectral density. It is shown in particular that asymptotically minimax estimators are as a rule nonlinear.
引用
收藏
页码:419 / 433
页数:15
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