TY - JOUR A1 - Desharnais, Jules A1 - Möller, Bernhard T1 - Characterizing determinacy in Kleene algebras T2 - Information Sciences N2 - Elements of Kleene algebras can be used, among other ways, as abstractions of the input-output semantics of nondeterministic programs or as models for the association of pointers with their target objects. One is interested in a notion of determinacy, in the first case, to distinguish deterministic programs and, in the second case, since it does not make sense for a pointer to point to two different objects. We discuss several candidate notions of determinacy and clarify their relationship. Some characterizations that are equivalent when the underlying Kleene algebra is an (abstract) relation algebra are not equivalent for general Kleene algebras. KW - Control and Systems Engineering KW - Theoretical Computer Science KW - Software KW - Information Systems and Management KW - Artificial Intelligence KW - Computer Science Applications Y1 - 2001 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/54193 UR - https://nbn-resolving.org/urn:nbn:de:bvb:384-opus4-541931 SN - 0020-0255 VL - 139 IS - 3-4 SP - 253 EP - 273 PB - Elsevier BV ER -