Automorphisms of Toeplitz $\mathscr{B}$-free systems

Abstract: For each $\mathscr{B}$-free subshift given by $\mathscr{B}={2^ib_i}_{i\in\mathbb{N}}$, where ${b_i}_{i\in\mathbb{N}}$ is a set of pairwise coprime odd numbers greater than one, it is shown that its automorphism group consists solely of powers of the shift.