Progress around the Boone-Higman Conjecture
arXiv:2306.16356
Abstract
A conjecture of Boone and Higman from the 1970's asserts that a finitely generated group has solvable word problem if and only if can be embedded into a finitely presented simple group. We comment on the history of this conjecture and survey recent results that establish the conjecture for many large classes of interesting groups.
v2: minor changes, submitted version. v3: accepted version, to appear in EMS Surv. Math. Sci