English

A Magnus theorem for some amalgamated products

Group Theory 2017-01-18 v1

Abstract

A group GG possesses the Magnus property if for every two elements u,vGu,v \in G with the same normal closure, uu is conjugate in GG to vv or v1v^{-1}. We prove the Magnus property for some amalgamated products including the fundamental group of a closed non-orientable surface of genus 3. This answers a question of O. Bogopolski and K. Sviridov, who obtained the analogous result for genus g>3g > 3.

Keywords

Cite

@article{arxiv.1701.04441,
  title  = {A Magnus theorem for some amalgamated products},
  author = {Carsten Feldkamp},
  journal= {arXiv preprint arXiv:1701.04441},
  year   = {2017}
}
R2 v1 2026-06-22T17:51:34.269Z