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Showing papers by "Rani Siromoney published in 1969"


Journal ArticleDOI
TL;DR: A generative grammar called equal matrix grammar which generates a class which meets both context-sensitive and context-free languages is defined and the formal power series generated by context- Free Grammars is extended to grammars of this system.
Abstract: A generative grammar called equal matrix grammar which generates a class which meets both context-sensitive and context-free languages is defined and the formal power series generated by context-free grammars is extended to grammars of this system. The Parikh mapping of this family of languages is shown to be semilinear. The Boolean and closure properties of a certain subfamily are examined. For this subfamily, the generative power of equal matrix grammar is higher than that of context-free grammars. For certain inherently ambiguous context-free languages, including that of Parikh, unambiguous grammars of this class exist. The application of equal matrix grammar to the generation of Tamil kernel sentences is given in the appendix.

70 citations


Journal ArticleDOI
TL;DR: The channel capacity of the class of equal matrix languages which includes several well-known context-sensitive and context-free languages is found out.
Abstract: The channel capacity of the class of equal matrix languages which includes several well-known context-sensitive and context-free languages is found out.

5 citations