Seminar 2.22.18 Cyr

Title: The automorphism group of a zero entropy symbolic system Speaker: Van Cyr (Bucknell) Abstract: The symmetries of a symbolic dynamical system X form an interesting and often complicated group called its automorphism group. Although this group is always countable, it is frequently extremely complex for positive entropy subshifts (containing free subgroups, the fundamental group of every […]