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Deciding bisimilarity of normed context-free processes is in \(\Sigma_ 2^ p\). (English) Zbl 0801.68058
Summary: Existing decision algorithms for bisimulation equivalence for normed context-free processes require at least exponential time. We develop a \(\sum^ p_ 2\) (a subclass of PSPACE) algorithm for deciding bisimulation equivalence for normed context-free processes.

MSC:
68Q10 Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.)
68Q55 Semantics in the theory of computing
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