: The asynchronous systems are the models of the asynchronous circuits from the digital electrical engineering. An asynchronous system f is a multi-valued function that assigns to each admissible input u : R {0,1}m a set f(u) of possible states x f(u),x : R {0,1}n. A special case of asynchronous system consists in the existence of a Boolean function : {0,1}n
Serban E. Vlad