Matches in SemOpenAlex for { <https://semopenalex.org/work/W2204394857> ?p ?o ?g. }
- W2204394857 abstract "Several applied problems may produce large sparse matrices with a small number of dense rows and/or columns, which can adversely affect the performance of commonly used direct solvers. By posing the problem as a saddle point system, an unconventional application of a null space method can be employed to eliminate dense rows and columns. The choice of null space basis is critical in retaining the overall sparse structure of the matrix. A one-sided application of the null space method is also presented to eliminate either dense rows or columns. These methods can be considered techniques that modify the nonzero structure of the matrix before employing a direct solver, and may result in improved direct solver performance." @default.
- W2204394857 created "2016-06-24" @default.
- W2204394857 creator A5035291643 @default.
- W2204394857 date "2015-08-25" @default.
- W2204394857 modified "2023-09-27" @default.
- W2204394857 title "Prestructuring sparse matrices with dense rows and columns via null space methods" @default.
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