most citedA Preconditioner Based on Low-Rank Approximation of Schur Complements

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math.NA2015★ 2 cited

A Preconditioner Based on Low-Rank Approximation of Schur Complements

Paolo Gatto, Jan S. Hesthaven

We introduce a preconditioner based on a hierarchical low-rank compression scheme of Schur complements. The construction is inspired by standard nested dissection, and relies on th…