TY - JOUR A1 - Ehm, Thomas A1 - Möller, Bernhard A1 - Struth, Georg T1 - Kleene modules T2 - Lecture Notes in Computer Science N2 - We propose axioms for Kleene modules (KM). These structures have a Kleene algebra and a Boolean algebra as sorts. The scalar products are mappings from the Kleene algebra and the Boolean algebra into the Boolean algebra that arise as algebraic abstractions of relational image and preimage operations. KM are the basis of algebraic variants of dynamic logics. We develop a calculus for KM and discuss their relation to Kleene algebra with domain and to dynamic and test algebras. As an example, we apply KM to the reachability analysis in digraphs. Y1 - 2019 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/59207 UR - https://nbn-resolving.org/urn:nbn:de:bvb:384-opus4-592073 SN - 978-3-540-22145-6 VL - 3051 SP - 112 EP - 123 PB - Springer CY - Berlin ER -