Three steps on an open road
This note describes three recent factorizations of banded invertible infinite matrices: 1. If A has a banded inverse: A = BC with block--diagonal factors B and C. 2. Permutations factor into a shift times N<2w tridiagonal permutations. 3. A = LPU with lower triangular L, permutation P, upper tria...
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Format: | Article |
Language: | English |
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American Institute of Mathematical Sciences,
2013-10-16T16:24:46Z.
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Online Access: | Get fulltext |