The Unsolvability of the Equivalence Problem for epsilon-free NGSM s with Unary Input (Output) Alphabet and Applications

Oscar H. Ibarra. The Unsolvability of the Equivalence Problem for epsilon-free NGSM s with Unary Input (Output) Alphabet and Applications. In 18th Annual Symposium on Foundations of Computer Science, 31 October-2 November, Providence, Rhode Island, USA. pages 74-81, IEEE, 1977.

Abstract

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