Conditional Lindenmayer Systems with Conditions Defined by Bounded Resources
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An extended conditional tabled Lindenmayer systems is an ET0L systems where each table is associated with a regular set, the so-called condition. A table can only be applied to a sentential form if the form belongs to its associated regular set. We study the power of conditional ET0L systems if the conditions are given by regular languages with a limited state or nonterminal complexity. We show that conditions obtained by regular grammars with two nonterminals and finite automata with three states are sufficient to generate all recursively enumerable languages. Similar results are given for the generation of all context-sensitive languages. Moreover, in the non-extended case, one gets infinite hierarchies for both complexity measures.
KeywordsRegular Language Sentential Form Contextual Grammar Regular Grammar Enumerable Language
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