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Practical divide-and-conquer algorithms for polynomial arithmetic
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Hart, William B. and Novocin, Andrew (2011) Practical divide-and-conquer algorithms for polynomial arithmetic. In: CASC'11 Proceedings of the 13th international conference on Computer algebra in scientific computing, Kassel, Germany, 5-9 Sep 2011. Published in: Lecture Notes in Computer Science, Vol.6885 pp. 200-214.
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Official URL: http://dx.doi.org/10.1007/978-3-642-23568-9_16
Abstract
We investigate two practical divide-and-conquer style algorithms for univariate polynomial arithmetic. First we revisit an algorithm originally described by Brent and Kung for composition of power series, showing that it can be applied practically to composition of polynomials in Z[x] given in the standard monomial basis. We offer a complexity analysis, showing that it is asymptotically fast, avoiding coefficient explosion in Z[x]. Secondly we provide an improvement to Mulders' polynomial division algorithm. We show that it is particularly efficient compared with the multimodular algorithm. The algorithms are straightforward to implement and available in the open source FLINT C library. We offer a practical comparison of our implementations with various computer algebra systems.
| Item Type: | Conference Item (Paper) |
|---|---|
| Subjects: | Q Science > QA Mathematics |
| Divisions: | Faculty of Science > Mathematics |
| Journal or Publication Title: | Lecture Notes in Computer Science |
| Publisher: | Springer |
| ISSN: | 0302-9743 |
| Date: | 2011 |
| Volume: | Vol.6885 |
| Page Range: | pp. 200-214 |
| Identification Number: | 10.1007/978-3-642-23568-9_16 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Conference Paper Type: | Paper |
| Title of Event: | CASC'11 Proceedings of the 13th international conference on Computer algebra in scientific computing |
| Type of Event: | Conference |
| Location of Event: | Kassel, Germany |
| Date(s) of Event: | 5-9 Sep 2011 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/43601 |
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