Some remarks concerning the rank of mapping tori and ascending HNN-extensions of abelian groups
Some remarks concerning the rank of mapping tori and ascending HNN-extensions of abelian groups
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关于阿贝尔群的映射 tori 和上升 HNN 扩展的等级的一些评论
DOI:
10.4171/rlm/624
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
U. Zannier
中科院分区:
文献类型:
--
作者:
F. Amoroso;U. Zannier
– Let A be a matrix in GLd(Z) of infinite order. In a recent paper, G. Levitt and V. Metaftsis prove that for any sufficiently large integer n the matrix A is not conjugated to a companion matrix. We first prove a local version of this theorem. Then, we give an effective statement, using diophantine methods. We also discuss several related problems.