English

On the Idempotent Conjecture for Sidki Doubles

Group Theory 2023-09-20 v2

Abstract

Let GG be a group and X(G)X(G) its Sidki Double. The idempotent conjecture says that there should be no non-trivial idempotent in the complex group ring of a torsion-free group. We investigate this conjecture for the Sidki double of a torsion-free group, and obtain a partial result.

Keywords

Cite

@article{arxiv.2204.02176,
  title  = {On the Idempotent Conjecture for Sidki Doubles},
  author = {Indira Chatterji and Guido Mislin},
  journal= {arXiv preprint arXiv:2204.02176},
  year   = {2023}
}

Comments

16 pages

R2 v1 2026-06-24T10:38:25.462Z