In: GMD - Arbeitspapier 594. 1991.
Abstract: We investigate how to restrict the concept of action refinement such that established interleaving equivalences for concurrent systems are preserved under these restricted refinements. We show that interleaving bisimulation is preserved under refinement if we do not allow to refine action occurrences deciding choices and action occurrences involved in autoconcurrency. On the other hand, interleaving trace equivalence is still not preserved under these restricted refinements.
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