Two-generator one-relator groups and marked polytopes
Two-generator one-relator groups and marked polytopes
复制标题
两生成元一相关群和标记多胞体
DOI:
10.5802/aif.3325
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Stephan Tillmann
中科院分区:
文献类型:
--
作者:
Stefan Friedl;Stephan Tillmann
We use Fox calculus to assign a marked polytope to a `nice' group presentation with two generators and one relator. Relating the marked vertices to Novikov-Sikorav homology we show that they determine the Bieri-Neumann-Strebel invariant of the group. Furthermore we show that in many cases the marked polytope is an invariant of the underlying group and that in those cases the marked polytope also determines the minimal complexity of all the associated HNN-splittings.
影响因子:
2.6
作者:
Dowdall, Spencer;Kapovich, Ilya;Leininger, Christopher
通讯作者:
Leininger, Christopher