The Lagrange multipliers in the equilibrium finite element method: Error estimates and postprocessing
type: Item
instance of: scholarly article
title: The Lagrange multipliers in the equilibrium finite element method: Error estimates and postprocessing
zbMATH Open document ID: 0692.65051
DOI: 10.1007/BF02575840
author: M. I. Comodi
published in: Calcolo
publication date: 1988-01-01T00:00:00Z
review text: The author uses Lagrange multipliers to guarantee interelement continuity in the resolution of the biharmonic problem by an equilibrium finite element method. The proof of convergence of the Lagrange multipliers to the displacement and to the normal derivative of the displacement are presented. Postprocessing the solution the Lagrange multipliers are used to provide a better approximation of the continuous displacement.
Mathematics Subject Classification ID: 65N30
Mathematics Subject Classification ID: 65N15
Mathematics Subject Classification ID: 35J05
zbMATH DE Number: 4133435
zbMATH Keywords: postprocessing techniques
zbMATH Keywords: Poisson equation
zbMATH Keywords: Lagrange multipliers
zbMATH Keywords: biharmonic problem
zbMATH Keywords: finite element method
zbMATH Keywords: convergence
reviewed by: N. F. F. Ebecken
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 4133435