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Creators/Authors contains: "Sousedík, Bedřich"

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  1. ; (, Journal of Computational Physics)
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  2. ; (, SIAM/ASA Journal on Uncertainty Quantification)
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  3. ; ; ; (, Applications of Mathematics)
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  4. (, International Journal for Numerical Methods in Engineering)
    Abstract We study a framework that allows to solve the coarse problem in the FETI‐DP method approximately. It is based on the saddle‐point formulation of the FETI‐DP system with a block‐triangular preconditioner. One of the blocks approximates the coarse problem, for which we use the multilevel BDDC method as the main tool. This strategy then naturally leads to a version of multilevel FETI‐DP method, and we show that the spectra of the multilevel FETI‐DP and BDDC preconditioned operators are essentially the same. The theory is illustrated by a set of numerical experiments, and we also present a few experiments when the coarse solve is approximated by algebraic multigrid. 
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  5. ; ; (, Computational Geosciences)
    null (Ed.)
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  6. ; ; (, SIAM/ASA Journal on Uncertainty Quantification)
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  7. ; (, Journal of Computational Physics)
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  8. ; (, SIAM/ASA Journal on Uncertainty Quantification)
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