English

Stability of the weak Haagerup property under graph products

Group Theory 2026-02-04 v1

Abstract

In this paper we prove that: Any graph product of finitely many groups, all of them satisfying weak Haagerup property with ΛWH=1\Lambda_{WH}=1, also satisfies weak Haagerup property and as a corollary of this result we obtain that the free product of weakly Haagerup groups with ΛWH=1\Lambda_{WH}=1, again has weak Haagerup property with ΛWH=1\Lambda_{WH}=1.

Keywords

Cite

@article{arxiv.2602.03577,
  title  = {Stability of the weak Haagerup property under graph products},
  author = {Shubhabrata Das and Partha Sarathi Ghosh},
  journal= {arXiv preprint arXiv:2602.03577},
  year   = {2026}
}