Kozlov-Maz'ya iteration as a form of Landweber iteration

Details Kozlov-Maz'ya iteration as a form of Landweber iteration Kozlov-Maz'ya iteration as a form of Landweber iteration

2011-07-12

arxiv.org/abs/1107.2194v1

Mathematics

Analysis of PDEs

28 pages, 4 figures

Scientific paper

We consider the alternating method of Kozlov and Maz'ya for solving the Cauchy problem for elliptic boundary-value problems. Considering the case of the Laplacian, we show that this method can be recast as a form of Landweber iteration. In addition to conceptual advantages, this observation leads to some practical improvements. We show how to accelerate Kozlov-Maz'ya iteration using the conjugate gradient algorithm, and we show how to modify the method to obtain a more practical stopping criterion.

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