Fast computation of GCDs

Fast computation of GCDs
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GCD 的快速计算

DOI:
10.1145/800125.804045
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发表时间:
1973
期刊:
Proceedings of the fifth annual ACM symposium on Theory of computing
影响因子:
--
通讯作者:
R. Moenck
R. Moenck
中科院分区:
--
文献类型:
--
作者:
R. Moenck

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将Schönhage提出的整数最大公约数(GCD)算法推广到所有具有快速乘法算法的欧氏区域。证明了如果两个N精度元素相乘的时间复杂度为O(NlogaN),则它们的GCD的计算时间复杂度为O(Nloga +1N).因此,一个新的更快的算法多元多项式GCD的可以推导出新的界限有理函数操作。
An integer greatest common divisor (GCD) algorithm due to Schönhage is generalized to hold in all euclidean domains which possess a fast multiplication algorithm. It is shown that if two N precision elements can be multiplied in O(N loga N), then their GCD can be computed in O(N loga+1 N). As a consequence, a new faster algorithm for multivariate polynomial GCD's can be derived and with that new bounds for rational function manipulation.