FETI-DP Methods with an Adaptive Coarse Space

  title={FETI-DP Methods with an Adaptive Coarse Space},
  author={Axel Klawonn and P. Radtke and Oliver Rheinbach},
  journal={SIAM J. Numerical Analysis},
A coarse space is constructed for the dual-primal finite element tearing and interconnecting (FETI-DP) domain decomposition method applied to highly heterogeneous problems by solving local generalized eigenvalue problems. For certain problems with highly varying coefficients, e.g., from multiscale simulations, the coefficient jump will appear in the condition number bound even if standard techniques such as scaling and the weighting of constraints are used. The FETI-DP theory is revisited and… CONTINUE READING
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