Distributed Time-Asynchronous Automata

@inproceedings{Dima2007DistributedTA,
  title={Distributed Time-Asynchronous Automata},
  author={Catalin Dima and Ruggero Lanotte},
  booktitle={ICTAC},
  year={2007}
}
We show that the class of distributed time-asynchronous automata is more expressive than timed automata, has a decidable emptiness problem, is closed under union, concatenation, star, shuffle and renaming, but not under intersection. The closure results are obtained by showing that distributed time-asynchronous automata are equivalent with a subclass of shuffle regular expressions and its related class of stopwatch automata. 
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