A new analytic formula for eigenvalue cluster points enables a nearly free diagonal preconditioner and parameter tuning that reduces GMRES iterations in high-contrast 3D transmission problems.
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Point Jacobi-type preconditioning and parameter tuning for Calderon-preconditioned Burton-Miller method in transmission problems
A new analytic formula for eigenvalue cluster points enables a nearly free diagonal preconditioner and parameter tuning that reduces GMRES iterations in high-contrast 3D transmission problems.