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Complexity of Regular Language Matching and Other Decidable Cases of the Satisfiability Problem for Constraints Between Regular Open Terms

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In this paper we study the satisfiability problem for language equations and constraints between regular open terms. We prove that: the constraint problem is PSPACE-complete, the regular language matching problem is EXPSPACE-complete even if we ask about satisfiability by regular languages, satisfiability of word-like language equations is in PSPACE, the finite solution problem is EXPSPACE-complete.

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Correspondence to Sebastian Bala.

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Bala, S. Complexity of Regular Language Matching and Other Decidable Cases of the Satisfiability Problem for Constraints Between Regular Open Terms. Theory Comput Syst 39, 137–163 (2006). https://doi.org/10.1007/s00224-005-1262-y

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  • DOI: https://doi.org/10.1007/s00224-005-1262-y

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