The isomorphism problem for torsion free nilpotent groups of Hirsch length at most 5

The isomorphism problem for torsion free nilpotent groups of Hirsch length at most 5
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赫希长度至多 5 的挠自由幂零群的同构问题

DOI:
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发表时间:
2017
期刊:
Groups Complex. Cryptol.
影响因子:
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通讯作者:
Ann
Ann
中科院分区:
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文献类型:
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作者:
B. Eick;Ann

文献摘要

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摘要研究了长度不超过5的有限生成无扭转幂零群的同构问题。我们将展示如何将这个问题转化为求解一组显式给定的多项式方程。在此基础上,我们引入了每一个有限生成的最长为5的无扭转幂零群的同构类型的标准形式,并利用我们的方法的一种变体,给出了它的自同构的显式描述。
Abstract We consider the isomorphism problem for the finitely generated torsion free nilpotent groups of Hirsch length at most five. We show how this problem translates to solving an explicitly given set of polynomial equations. Based on this, we introduce a canonical form for each isomorphism type of finitely generated torsion free nilpotent group of Hirsch length at most 5 and, using a variation of our methods, we give an explicit description of its automorphisms.