Modular Algorithms for Computing Minimal Associated Primes and Radicals of Polynomial Ideals
Modular Algorithms for Computing Minimal Associated Primes and Radicals of Polynomial Ideals
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计算多项式理想的最小关联素数和根式的模块化算法
DOI:
10.1145/3208976.3209014
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Noro Masayuki
中科院分区:
文献类型:
--
作者:
Aoyama Toru;Noro Masayuki
In this paper, we propose algorithms for computing minimal associated primes of ideals in polynomial rings over Q and computing radicals of ideals in polynomial rings over a field. They apply Chinese Remainder Theorem (CRT) to Laplagne's algorithm which computes minimal associated primes without producing redundant components and computes radicals. CRT reconstructs an object in a ring from its modular images in the quotient rings modulo some ideals. In Laplagne's algorithm, ideals are decomposed over rational function fields by regarding some variables as parameters. In our new algorithms, we compute the minimal associated primes and the radical of < φ(G) > for a given ideal I= < G >, where φ is a substitution map for a parameter. Then we construct candidates of the minimal associated primes and the radical of I by applying CRT for those of < φ(G) >'s. In order for this method to work correctly, the shape of each modular component must coincide with that of the corresponding component of the ideal for computations of minimal associated primes, and radicals of modular images of given ideals must coincide with modular images of radicals of given ideals for radical computations. The former is realized with a high probability because a multivariate irreducible polynomial over Q remains irreducible after a substitution of integers for variables with a high probability and the latter is realized except for a finite number of moduli.
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DOI:
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发表时间:
2012
期刊:
影响因子:
--
作者:
Shohei Tateishi;Hidetoshi Matsui and Sadanori Konishi;K. Yokoyama
通讯作者:
K. Yokoyama
DOI:
10.1016/j.jsc.2011.01.003
发表时间:
2010
期刊:
J. Symb. Comput.
影响因子:
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1992
期刊:
J. Symb. Comput.
影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
2006
期刊:
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影响因子:
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作者:
Santiago Laplagne
通讯作者:
Santiago Laplagne