Abstract Grammars Based on Transductions (Revised version)


Asveld, Peter R.J. (1989) Abstract Grammars Based on Transductions (Revised version). [Report]

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Abstract:We study an abstract grammatical model in which the effect (or application) of a production - determined by a so-called transduction - plays the main part rather than the notion of production itself. Under appropriately chosen assumptions on the underlying family $T$ of transductions, we establish elementary, decidability, and complexity properties of the corresponding family $L(T)$ of languages generated by $T$-grammars. These results are special instances of slightly more general properties of so-called $\Gamma$-controlled $T$-grammars, since regular control does not increase the generating power of $T$-grammars (In a $\Gamma$-controlled $T$-grammar we restrict the iteration of $T$-transductions to those sequences of transductions that belong to a given control language, taken from a family $\Gamma$ of control languages).
Item Type:Report
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/66188
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