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dc.creatorCalvo Alpizar, Juan Gabriel
dc.creatorWidlund, Olof B.
dc.date.accessioned2018-05-15T21:00:46Z
dc.date.available2018-05-15T21:00:46Z
dc.date.issued2016-12-12
dc.identifier.citationhttp://etna.math.kent.edu/volumes/2011-2020/vol45/abstract.php?vol=45&pages=524-544es_ES
dc.identifier.issn1068-9613
dc.identifier.urihttp://hdl.handle.net/10669/74618
dc.description.abstractAn adaptive choice for primal spaces based on parallel sums is developed for BDDC deluxe methods and elliptic problems in three dimensions. The primal space, which forms the global, coarse part of the domain decomposition algorithm and which is always required for any competitive algorithm, is defined in terms of generalized eigenvalue problems related to subdomain edges and faces; selected eigenvectors associated to the smallest eigenvalues are used to enhance the primal spaces. This selection can be made automatic by using tolerance parameters specified for the subdomain faces and edges. Numerical results verify the results and provide a comparison with primal spaces commonly used. They include results for cubic subdomains as well as subdomains obtained by a mesh partitioner. Different distributions for the coefficients are also considered with constant coefficients, highly random values, and channel distributions.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[821-B5-A28]/UCR/Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.sourceElectronic Transactions on Numerical Analysis, Vol. 45, pp. 524–544es_ES
dc.subjectelliptic problemses_ES
dc.subjectdomain decompositiones_ES
dc.subjectBDDC deluxe preconditionerses_ES
dc.subjectadaptive primal constraintses_ES
dc.subject65F08es_ES
dc.subject65N30es_ES
dc.subject65N35es_ES
dc.subject65N55es_ES
dc.titleAn adaptive choice of primal constrains for BDDC domain decomposition algorithmses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.typeArtículo científicoes_ES
dc.date.updated2018-05-14T21:06:06Z
dc.description.procedenceUCR::Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones en Matemáticas Puras y Aplicadas (CIMPA)es_ES
dc.description.procedenceUCR::Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Matemáticaes_ES
dc.identifier.codproyecto821-B5-A28


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