Essential surfaces in graph pairs
Essential surfaces in graph pairs
复制标题
图对中的基本曲面
DOI:
--
复制
发表时间:
2017
影响因子:
3.9
通讯作者:
H. Wilton
中科院分区:
文献类型:
--
作者:
H. Wilton
A well-known question of Gromov asks whether every one-ended hyperbolic group
Γ
\Gamma
has a surface subgroup. We give a positive answer when
Γ
\Gamma
is the fundamental group of a graph of free groups with cyclic edge groups. As a result, Gromov’s question is reduced (modulo a technical assumption on 2-torsion) to the case when
Γ
\Gamma
is rigid. We also find surface subgroups in limit groups. It follows that a limit group with the same profinite completion as a free group must in fact be free, which answers a question of Remeslennikov in this case.
DOI:
10.48550/arxiv.1303.2700
发表时间:
2013
期刊:
arXiv e-prints
影响因子:
--
作者:
Calegari Danny
通讯作者:
Calegari Danny