On benign subgroups constructed by Higman’s sequence building operation. (English) Zbl 07911055
J. Contemp. Math. Anal., Armen. Acad. Sci. 59, No. 1, 1-12 (2024); and Izv. Nats. Akad. Nauk Armen., Mat. 59, No. 1, 3-19 (2024).
Reviewer: Enrico Jabara (Venezia)