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On Finite Element Formulations for the Obstacle Problem – Mixed and Stabilised Methods

  • Tom Gustafsson , Rolf Stenberg EMAIL logo and Juha Videman


We discuss the differences between the penalty, mixed and stabilised methods for the finite element approximation of the obstacle problem. The theoretical properties of the methods are discussed and illustrated through numerical examples.

MSC 2010: 65K15; 65N30

Funding source: Tekes

Award Identifier / Grant number: 3305/31/2015

Funding statement: Funding from Tekes – the Finnish Funding Agency for Innovation (Decision No. 3305/31/2015) and the Finnish Cultural Foundation is gratefully acknowledged.


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Received: 2017-2-5
Accepted: 2017-5-10
Published Online: 2017-6-8
Published in Print: 2017-7-1

© 2017 Walter de Gruyter GmbH, Berlin/Boston

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