@InProceedings{MitraChandy08:TPHOLS, author="Mitra, Sayan and Chandy, K. Mani", editor="Mohamed, Otmane Ait and Mu{\~{n}}oz, C{\'e}sar and Tahar, Sofi{\`e}ne", title="A Formalized Theory for Verifying Stability and Convergence of Automata in PVS", booktitle="Theorem Proving in Higher Order Logics", year="2008", publisher="Springer Berlin Heidelberg", address="Berlin, Heidelberg", pages="230--245", abstract="Correctness of many hybrid and distributed systems require stability and convergence guarantees. Unlike the standard induction principle for verifying invariance, a theory for verifying stability or convergence of automata is currently not available. In this paper, we formalize one such theory proposed by Tsitsiklis [27]. We build on the existing PVS metatheory for untimed, timed, and hybrid input/output automata, and incorporate the concepts about fairness, stability, Lyapunov-like functions, and convergence. The resulting theory provides two sets of sufficient conditions, which when instantiated and verified for particular automata, guarantee convergence and stability, respectively.", isbn="978-3-540-71067-7" }