Hierarchical Matrices Method and Its Application in Electromagnetic Integral Equations

<table>Computational complexity of constructing <svg height="12.0625" id="M178" style="vertical-align:-0.20474pt" version="1.1" viewbox="0 0 17.075001 12.0625" width="17.075001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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q0 101 104 262l-107 -41q-56 -110 -132 -193q-75 -82 -145 -109q-31 -11 -56 -11t-41 16.5t-16 43.5q0 129 283 247q17 29 20 33l22 36q1 2 9 13.5l14 20.5q18 28 59 77q34 39 87 86q-5 -1 -20 -1q-44 0 -124 44q-62 34 -102 34q-48 0 -82 -31q-34 -30 -34 -70q0 -44 22 -69
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</svg>-matrices by fixed incident wave at 300.0 MHz.</table>

International Journal of Antennas and Propagation

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Figure 3

Figure 3: Hierarchical Matrices Method and Its Application in Electromagnetic Integral Equations 