An Improvement of the Rational Representation for High-Dimensional Systems
An Improvement of the Rational Representation for High-Dimensional Systems
复制标题
高维系统有理表示的改进
DOI:
10.1007/s11424-020-9316-4
复制
发表时间:
2020-11
影响因子:
2.1
通讯作者:
Wang Dingkang
中科院分区:
文献类型:
--
作者:
Xiao Fanghui;Lu Dong;Ma Xiaodong;Wang Dingkang
Based on the rational univariate representation of zero-dimensional polynomial systems, Tan and Zhang proposed the rational representation theory for solving a high-dimensional polynomial system, which uses so-called rational representation sets to describe all the zeros of a high-dimensional polynomial system. This paper is devoted to giving an improvement for the rational representation. The idea of this improvement comes from a minimal Dickson basis used for computing a comprehensive Gröbner system of a parametric polynomial system to reduce the number of branches. The authors replace the normal Grobner basisGsatisfying certain conditions in the original algorithm (Tan-Zhang’s algorithm) with a minimal Dickson basisGmof a Grobner basis for the ideal, whereGmis smaller in size thanG.Based on this, the authors give an improved algorithm. Moreover, the proposed algorithm has been implemented on the computer algebra system Maple. Experimental data and its performance comparison with the original algorithm show that it generates fewer branches and the improvement is rewarding.
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DOI:
10.1007/s00200-002-0109-x
发表时间:
2003-02
期刊:
Applicable Algebra in Engineering, Communication and Computing
影响因子:
--
作者:
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通讯作者:
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DOI:
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2007-07
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影响因子:
--
作者:
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通讯作者:
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DOI:
10.1006/jsco.1999.0275
发表时间:
1999-07
期刊:
J. Symb. Comput.
影响因子:
--
作者:
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通讯作者:
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