Abstract
Tucker decompositions (also known as higher order singular value decompositions) are used to lessen the memory requirements of translation operator tensors in fast multipole method-fast Fourier transform accelerated surface integral equation solvers. For many practical examples, the proposed drop-in code enhancement results in over 90% reduction in these tensors' storage requirements while imposing negligible computational overhead, thus significantly enhancing the solvers' application range on fixed computational resources.
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