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On MLMDA/Butterfly Compressibility of Inverse Integral Operators

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3 Author(s)
Han Guo ; Department of Microwave Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China ; Jun Hu ; Eric Michielssen

The multilevel matrix decomposition algorithm (MLMDA) is shown to permit effective compression of inverse integral operators pertinent to the analysis of scattering from electrically large structures. Observed compression ratios exceed those realized by low-rank (LR) compression methods, leading to substantial memory savings and a faster application of the inverse operator, and suggesting a new application for schemes traditionally used for compressing forward integral operators.

Published in:

IEEE Antennas and Wireless Propagation Letters  (Volume:12 )