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arXiv 1810.03467math.GR
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无立方序群的同构判定

Isomorphism testing of groups of cube-free order

Heiko Dietrich, James B. Wilson

摘要:

如果没有素数的三次幂整除$|G|$,则群$G$有无立方序。给出了一个算法,给定两个阶已知的无立方群$G$和$H$,判定是否为$G\cong H$,如果是,则构造同构$G\to H$ .如果输入的群是置换群,那么我们的算法运行在时间多项式的输入大小,改善了以前的超多项式界。我们的算法的实现提供了计算机代数系统{ \sf GAP}。

英文摘要:

A group $G$ has cube-free order if no prime to the third power divides $|G|$. We describe an algorithm that given two cube-free groups $G$ and $H$ of known order, decides whether $G\cong H$, and, if so, constructs an isomorphism $G\to H$. If the groups are input as permutation groups, then our algorithm runs in time polynomial in the input size, improving on the previous super-polynomial bound. An implementation of our algorithm is provided for the computer algebra system {\sf GAP}.

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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