Holomorphic semigroups of finite shift in the unit disc

Abstract

We give three necessary and sufficient conditions so that a parabolic holomorphic semigroup $(\phi_t)$ in the unit disc is of finite shift. One is in terms of the asymptotic behavior of speeds of convergence, the second one is related to the hyperbolic metric of its Koenigs domain $\Omega$ and the latter one deals with Euclidean properties of $\Omega$.