A hierarchical direct solver for QBX-discretized boundary integral equations using HSS matrices, proxy-based far-field approximations, and ID compression with an error model for automatic parameter selection.
SIAM Journal on Matrix Analysis and Applications35, 725– 748 (2014)
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A Fast Direct Solver for Boundary Integral Equations Using Quadrature By Expansion
A hierarchical direct solver for QBX-discretized boundary integral equations using HSS matrices, proxy-based far-field approximations, and ID compression with an error model for automatic parameter selection.