RT Journal Article T1 Periods of strongly continuous semigroups A1 Muñoz-Fernández, Gustavo A. A1 Seoane Sepúlveda, Juan Benigno A1 Weber, Andress AB In this paper, we study the set of periods of (chaotic) strongly continuous semigroups. We prove a relationship between eigenvalues on the imaginary axis of the generator of a strongly continuous semigroup and the set of periods of the semigroup itself. This relationship in turn is used to obtain information about the structure of the set of periods and to construct (chaotic) semigroups with prescribed periods. PB London Mathematical Society SN 1469-2120 YR 2012 FD 2012 LK https://hdl.handle.net/20.500.14352/42552 UL https://hdl.handle.net/20.500.14352/42552 LA eng NO Spanish Ministry of Science and Innovation DS Docta Complutense RD 31 mar 2026