RT Journal Article SR 00 ID 10.1109/CDC.1986.267522 A1 Cohen, G. A1 Moller, P. A1 Quadrat, J. A1 Viot, M. T1 Dating and counting events in discrete-event systems JF IEEE Xplore YR 1986 FD 1986-12 SP 988 OP 993 AB Following our previous attempts[3],[4],[5] to initiate a linear system theory of discrete-event systems, we present a new approach where dating and counting events play a symmetric role. Algebraically, this leads us to work in a new dioid which, very roughly speaking, consists of formal power series in two variables with boolean coefficients. In this new framework, we revisit some results formerly obtained with our previous point of view. NO Proceedings, 25th IEEE Conference on Decision and Control, 1986 PB IEEE LK https://pure.iiasa.ac.at/id/eprint/14133/