Convergence of a balancing domain decomposition by constraints and energy minimization

  title={Convergence of a balancing domain decomposition by constraints and energy minimization},
  author={Jan Mandel and Clark R. Dohrmann},
  journal={Numerical Lin. Alg. with Applic.},
A convergence theory is presented for a substructuring preconditioner based on constrained energy minimization concepts. The preconditioner is formulated as an Additive Schwarz method and analyzed by building on existing results for Balancing Domain Decomposition. The main result is a bound on the condition number based on inequalities involving the matrices of the preconditioner. Estimates of the usual form C(1 + log(H/h)) are obtained under the standard assumptions of substructuring theory… CONTINUE READING
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