부산대학교 도서관

This paper continues a rich line of research into the automorphism group of Toeplitz subshifts, which are objects of fundamental importance in symbolic dynamics. The authors establish conditions under which the automorphism group of regular Toeplitz subshifts is trivial. They provide numerous examples from the class of $\Cal{B}$-free subshifts that meet these conditions, building upon the work of A. Dymek [Bull. Pol. Acad. Sci. Math. {\bf 65} (2017), no.~2, 139--152; MR3731019]. Additionally, they present an example of a $\Cal{B}$-free Toeplitz subshift with an automorphism group containing elements of arbitrarily large finite order, addressing Question 11, posed by S. Ferenczi, J. Kułaga-Przymus and M. Lemańczyk [in {\it Ergodic theory and dynamical systems in their interactions with arithmetics and combinatorics}, 163--235, Lecture Notes in Math., 2213, Springer, Cham, 2018; MR3821717].