Anton Menshov, Vladimir Okhmatovski, Ali E. Yilmaz
A. Menshov, V. Okhmatovski, and A. E. Yilmaz, “A modified admissibility criterion for H‑matrix based integral-equation,” in USNC-URSI Radio Sci. Meet., San-Diego, CA, Jul. 2017, pp. 27–28.
Publication year: 2017


An alternative matrix block hierarchy construction process is presented for H-matrix based fast direct solvers. In the proposed method, the traditional distance-based criterion for admitting a given block of the impedance matrix is augmented by also evaluating the admissibility of its children blocks.