On Extensions of Process Rewrite Systems: Rewrite Systems with Weak Finite-State Unit

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Authors

KŘETÍNSKÝ Mojmír ŘEHÁK Vojtěch STREJČEK Jan

Year of publication 2003
Type Article in Proceedings
Conference Prelim.Proc.of the 5th Internat.Workshop on Verification of Infinite-State Systems (INFINITY'2003)
MU Faculty or unit

Faculty of Informatics

Citation
Field Informatics
Keywords process rewrite systems; state extension; infinite-state
Description Various classes of infinite-state processes are often specified by rewrite systems. We extend Mayr's Process Rewrite Systems (PRS) by finite-state unit whose transition function satisfies some restrictions inspired by weak finite automata. We classify these models by their expressiveness and show how the hierarchy of new classes (w.r.t.~bisimilarity) is related to both PRS hierarchy of Mayr and two other hierarchies of PRS extensions.
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