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Deciding bisimilarity isP-complete

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Formal Aspects of Computing

Abstract

In finite labelled transition systems the problems of deciding strong bisimilarity, observation equivalence and observation congruence areP-complete under many—oneNC-reducibility. As a consequence, algorithms for automated analysis of finite state systems based on bisimulation seem to be inherently sequential in the following sense: the design of anNC algorithm to solve any of these problems will require an algorithmic breakthrough, which is exceedingly hard to achieve.

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Accepted in revised form November 1991 by R. Milner

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Balcázar, J., Gabarró, J. & Sántha, M. Deciding bisimilarity isP-complete. Formal Aspects of Computing 4 (Suppl 1), 638–648 (1992). https://doi.org/10.1007/BF03180566

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