Unambiguity in Timed Regular Languages: Automata and Logics

@inproceedings{Pandya2010UnambiguityIT,
  title={Unambiguity in Timed Regular Languages: Automata and Logics},
  author={Paritosh K. Pandya and Simoni S. Shah},
  booktitle={FORMATS},
  year={2010}
}
Unambiguous languages (UL), originally defined by Schutzenberger using unambiguous polynomials, are a robust subclass of regular languages. They have many diverse characterizations: they are recognized by partially-ordered two-way deterministic automata (po2dfa), they are definable by Unary Temporal Logic (UTL) as also by the two variable first-order logic over words (FO2[<]). In this paper, we consider the timed version of unambiguous languages. A subclass of the two-way deterministic timed… 
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