Convergence and optimality of hp-AFEM

Authors
Publication date 2017
Journal Numerische Mathematik
Volume | Issue number 135 | 4
Pages (from-to) 1073-1119
Organisations
  • Faculty of Science (FNWI) - Korteweg-de Vries Institute for Mathematics (KdVI)
Abstract We design and analyze an adaptive hp-finite element method (hp-AFEM) in dimensions n=1,2. The algorithm consists of iterating two routines: hp-NEARBEST finds a near-best hp-approximation of the current discrete solution and data to a desired accuracy, and REDUCE improves the discrete solution to a finer but comparable accuracy. The former hinges on a recent algorithm by Binev for adaptive hp-approximation, and acts as a coarsening step. We prove convergence and instance optimality.
Document type Article
Language English
Published at https://doi.org/10.1007/s00211-016-0826-x
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