arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.09493cs.SC
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一类新的格罗布纳基及其复杂性

A New Type of Gröbner Basis and Its Complexity

Sheng-Ming Ma

摘要:

本文引入的新型理想基是基于Buchberger算法的格罗布纳基和基于吴方法的特征集之间的折衷.它降低了传统格罗布纳基的复杂性,并在很大程度上克服了著名的中间表达式膨胀问题和中间系数膨胀问题。新基的$S$ -多项式的计算最多需要$O(m\ln^2m\ln\ln m)$字操作,而在Buchberger算法中需要$O(m^6\ln^2m)$字操作。这里,$m$表示前导系数和其余多项式中的项数的上限。新的基地是零维多项式理想和基于单变量伪司。然而,在对比的伪部门在吴的方法的特征集,新的基地保留了原来的理想,特别是代数信息,解决理想的成员问题。为了确定消元的真实因子,我们分析了伪除的乘子,并在因子为零的主商环上给出了一个算法。

英文摘要:

The new type of ideal basis introduced herein constitutes a compromise between the Gröbner bases based on the Buchberger's algorithm and the characteristic sets based on the Wu's method. It reduces the complexity of the traditional Gröbner bases and subdues the notorious intermediate expression swell problem and intermediate coefficient swell problem to a substantial extent. The computation of an $S$-polynomial for the new bases requires at most $O(m\ln^2m\ln\ln m)$ word operations whereas $O(m^6\ln^2m)$ word operations are requisite in the Buchberger's algorithm. Here $m$ denotes the upper bound for the numbers of terms both in the leading coefficients and for the rest of the polynomials. The new bases are for zero-dimensional polynomial ideals and based on univariate pseudo-divisions. However in contrast to the pseudo-divisions in the Wu's method for the characteristic sets, the new bases retain the algebraic information of the original ideal and in particular, solve the ideal membership problem. In order to determine the authentic factors of the eliminant, we analyze the multipliers of the pseudo-divisions and develop an algorithm over principal quotient rings with zero divisors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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