A posteriori error control for fully discrete crank-nicolson schemes

We derive residual-based a posteriori error estimates of optimal order for fully discrete approximations for linear parabolic problems. The time discretization uses the Crank- Nicolson method, and the space discretization uses finite element spaces that are allowed to change in time. The main tool i...

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Detalles Bibliográficos
Autores: B̈ansch, E., Karakatsani, F., Makridakis Ch.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Basque Center for Applied Mathematics (BCAM)
Repositorio:BIRD. BCAM's Institutional Repository Data
OAI Identifier:oai:bird.bcamath.org:20.500.11824/558
Acceso en línea:http://hdl.handle.net/20.500.11824/558
Access Level:acceso abierto
Palabra clave:A posteriori error estimators
Crank-Nicolson method
Parabolic problem
Descripción
Sumario:We derive residual-based a posteriori error estimates of optimal order for fully discrete approximations for linear parabolic problems. The time discretization uses the Crank- Nicolson method, and the space discretization uses finite element spaces that are allowed to change in time. The main tool in our analysis is the comparison with an appropriate reconstruction of the discrete solution, which is introduced in the present paper.