Book Review: Matrices of SignβSolvable L
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Reinhard Nabben
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Article
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1997
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John Wiley and Sons
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English
β 38 KB
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A linear system Ax = b, A β β«ήβ¬ m,n , b β β«ήβ¬ m is called sign-solvable if the signs of x are determined only by the signs of the entries of A and b. It was the economist P. A. Samuelson who first recognized that it is worthwhile to consider such kind of problems or linear systems. His book, Founda