2 problems

Let $G$ be a finitely generated residually finite non-amenable group. Non-amenable property $R_\infty$ conjecture. The group $G$ has property $R_\infty$. This is presented as a wea…

Let $G$ be a finitely generated residually finite group. Fel'shtyn–Troitsky conjecture. The group $G$ either has property $R_\infty$ or is solvable-by-finite. The disjunction is no…