Department Seminars & Colloquia
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BDDC(Balancing Domain Decomposition by Constraints) methods based on an adaptive selection of primal constraints for problems posed in H(div) are introduced. Our methods are fully algebraic and deal with highly oscillating coefficients. Bounds on the condition number of the preconditioned linear system are also provided which are independent of the values and jumps. This is joint work with Olof Widlund(Courant Institute), Stefano Zampini(KAUST), and Clark Dohrmann(Sandia National Lab).