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dc.contributor.author
Alvarez, María Luz

dc.contributor.author
Duran, Ricardo Guillermo

dc.date.available
2024-02-26T11:11:31Z
dc.date.issued
2023-05
dc.identifier.citation
Alvarez, María Luz; Duran, Ricardo Guillermo; A posteriori error estimates for mixed approximations of degenerate elliptic problems; Elsevier Science; Applied Numerical Mathematics; 188; 5-2023; 146-159
dc.identifier.issn
0168-9274
dc.identifier.uri
http://hdl.handle.net/11336/228293
dc.description.abstract
We consider the Raviart-Thomas mixed finite element approximation of non-uniform elliptic problems of the form −div(a∇u)=f where a=a(x) is in the Muckenhoupt class A2. We introduce an error estimator based on a local post-processing and prove its efficiency and reliability, generalizing to the degenerate case the theory developed in [24]. Finally, we present some numerical computations for a model problem showing the good behaviour of an adaptive procedure based on our estimator.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science

dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
A POSTERIORI ERROR ESTIMATORS
dc.subject
DEGENERATE ELLIPTIC PROBLEMS
dc.subject
MIXED FINITE ELEMENTS
dc.subject.classification
Matemática Aplicada

dc.subject.classification
Matemáticas

dc.subject.classification
CIENCIAS NATURALES Y EXACTAS

dc.title
A posteriori error estimates for mixed approximations of degenerate elliptic problems
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-02T15:16:34Z
dc.journal.volume
188
dc.journal.pagination
146-159
dc.journal.pais
Países Bajos

dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Alvarez, María Luz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Matemática; Argentina
dc.description.fil
Fil: Duran, Ricardo Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Investigaciones Matemáticas "Luis A. Santaló". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Matemáticas "Luis A. Santaló"; Argentina
dc.journal.title
Applied Numerical Mathematics

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168927423000673
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.apnum.2023.03.006
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