Document Type

Article

Publication Date

1-1-2018

Abstract

When the obstacle problem of clamped Kirchhoff plates is discretized by a partition of unity method, the resulting discrete variational inequalities can be solved by a primal-dual active set algorithm. In this paper we develop and analyze additive Schwarz preconditioners for the systems that appear in each iteration of the primal-dual active set algorithm. Numerical results that corroborate the theoretical estimates are also presented.

Publication Source (Journal or Book title)

Electronic Transactions on Numerical Analysis

First Page

274

Last Page

290

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