Mazurov's question on fixed points of automorphisms of free Burnside groups

Abstract

In the Kourovka Notebook, V.\,D.~Mazurov asked whether an automorphism $\alpha$ of prime order $m$ of the infinite free Burnside group $G=B(m,q)$ of prime period $q$ that cyclically permutes the free generators of $G$ must have a nontrivial fixed point. In this paper, we show that for $m\ge 3$ the answer is negative for all sufficiently large prime periods $q$. Precisely, we prove that for any odd $m\ge 3$, there exists $q_m>0$ such that for every prime period $q>q_m$, the automorphism of $B(m,q)$ of order $m$ that cyclically permutes its free generators is fixed-point-free.

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