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- W2804872420 abstract "This note outlines the theory and initial testing of recently developed methods to hierarchically factor low rank Method of Moments system matrices. This method is unique in that it is specific to low rank MOM formulations and is a direct solver which takes significant advantage of the low rank formulation. This direct solver factors a matrix Z into a product of low rank easily invertible matrices using the Sherman Morrison Woodbury formula for low rank updates to a matrix inverse. The factorization phase is much faster than LU and once the system matrix is factored, the solution x = Z−1 b is much faster and requires much less memory than ordinary LU factor back solve." @default.
- W2804872420 created "2018-06-01" @default.
- W2804872420 creator A5086320948 @default.
- W2804872420 date "2018-03-01" @default.
- W2804872420 modified "2023-09-23" @default.
- W2804872420 title "HODLR direct MOM solver" @default.
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- W2804872420 doi "https://doi.org/10.23919/ropaces.2018.8364226" @default.
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