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- BDDC abstract "In numerical analysis, BDDC (balancing domain decomposition by constraints) is a domain decomposition method for solving large symmetric, positive definite systems of linear equations that arise from the finite element method. BDDC is used as a preconditioner to the conjugate gradient method. A specific version of BDDC is characterized by the choice of coarse degrees of freedom, which can be values at the corners of the subdomains, or averages over the edges or the faces of the interface between the subdomains. One application of the BDDC preconditioner then combines the solution of local problems on each subdomains with the solution of a global coarse problem with the coarse degrees of freedom as the unknowns. The local problems on different subdomains are completely independent of each other, so the method is suitable for parallel computing. With a proper choice of the coarse degrees of freedom (corners in 2D, corners plus edges or corners plus faces in 3D) and with regular subdomain shapes, the condition number of the method is bounded when increasing the number of subdomains, and it grows only very slowly with the number of elements per subdomain. Thus the number of iterations is bounded in the same way, and the method scales well with the problem size and the number of subdomains.".
- BDDC wikiPageExternalLink june07-Mandel_Dohrmann_Tezaur.html.
- BDDC wikiPageExternalLink june07-Widlund_Li.html.
- BDDC wikiPageID "16229578".
- BDDC wikiPageRevisionID "577394136".
- BDDC hasPhotoCollection BDDC.
- BDDC subject Category:Domain_decomposition_methods.
- BDDC type Ability105616246.
- BDDC type Abstraction100002137.
- BDDC type Cognition100023271.
- BDDC type DomainDecompositionMethods.
- BDDC type Know-how105616786.
- BDDC type Method105660268.
- BDDC type PsychologicalFeature100023100.
- BDDC comment "In numerical analysis, BDDC (balancing domain decomposition by constraints) is a domain decomposition method for solving large symmetric, positive definite systems of linear equations that arise from the finite element method. BDDC is used as a preconditioner to the conjugate gradient method.".
- BDDC label "BDDC".
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- BDDC sameAs Q4835365.
- BDDC sameAs Q4835365.
- BDDC sameAs BDDC.
- BDDC wasDerivedFrom BDDC?oldid=577394136.
- BDDC isPrimaryTopicOf BDDC.