Matrix Equations and Normal Forms for Context-Free Grammars
Journal of the ACM (JACM)
Programming Language for Automata
Journal of the ACM (JACM)
Simple deterministic languages
SWAT '66 Proceedings of the 7th Annual Symposium on Switching and Automata Theory (swat 1966)
The Pattern-of-Calls Expansion Is the Canonical Fixpoint for Recursive Definitions
Journal of the ACM (JACM)
Program equivalence and context-free grammars
Journal of Computer and System Sciences
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In this paper we attempt to tighten the connections between classical mathematics, automata theory, and the theory of programming languages. Formal linguistic objects corresponding to programs are defined via sets of functional equations; two interpretations of such an object are given, one in classical mathematics, and one in terms of an abstract machine that executes the program. Within this framework we examine flow charts, recursion, parameterization, and declaration.