2017
DOI: 10.1016/j.jsc.2016.08.013
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Algorithm for computing μ-bases of univariate polynomials

Abstract: We present a new algorithm for computing a µ-basis of the syzygy module of n polynomials in one variable over an arbitrary field K. The algorithm is conceptually different from the previously-developed algorithms by Cox, Sederberg, Chen, Zheng, and Wang for n = 3, and by Song and Goldman for an arbitrary n. The algorithm involves computing a "partial" reduced row-echelon form of a (2d+ 1)×n(d+ 1) matrix over K, where d is the maximum degree of the input polynomials. The proof of the algorithm is based on stand… Show more

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Cited by 12 publications
(19 citation statements)
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“…It would be interesting to explore whether this result can be generalized for any rational parametrization, as it would considerably reduce the complexity of computing µ and µ-bases. For the state of the art in this area, see [9] and the references therein.…”
Section: Minimal Solutions Of the Rational Interpolation Problem 415mentioning
confidence: 99%
“…It would be interesting to explore whether this result can be generalized for any rational parametrization, as it would considerably reduce the complexity of computing µ and µ-bases. For the state of the art in this area, see [9] and the references therein.…”
Section: Minimal Solutions Of the Rational Interpolation Problem 415mentioning
confidence: 99%
“…and uses various reductions to reach iteratively a µ-basis by means of linear algebra algorithms; see e.g. [14,15]. Another type of methods arise from the computation of normal forms of matrices over a principal ideal domain, typically the computation of a Popov form; see e.g.…”
Section: µ-Basismentioning
confidence: 99%
“…Finally, we mention that a third approach for computing µ-bases has been recently given in [15]. It also relies on matrix reductions, but here a finer (partial) reduced rowechelon form is used.…”
Section: Computation Of µ-Basismentioning
confidence: 99%
“…and uses various reductions to reach iteratively a µbasis by means of linear algebra al gorithms; see e.g. [11,36]. Another type of methods arise from the computation of normal forms of matrices over a principal ideal domain, typically the computation of a Popov form; see e.g.…”
Section: µBasismentioning
confidence: 99%
“…Finally, we mention that a third approach for computing µbases has been recently given in [36]. It also relies on matrix reductions, but here a finer (partial) reduced rowechelon form is used.…”
Section: Computation Of µBasismentioning
confidence: 99%