Multisequential Grammars with Homogeneous Selectors

Authors:
Aleksander Meduna;Petr Vurm
Affiliations:
Department of Computer Science and Engineering, Brno University of Technology, Božetěchova 2, Brno 61266, Czech Republic;Department of Computer Science and Engineering, Brno University of Technology, Božetěchova 2, Brno 61266, Czech Republic
Venue:
Fundamenta Informaticae
Year:
2001

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Abstract

This paper deals with selective substitution grammars. It concentrates on multisequential grammars with homogeneous selectors that have all their activated parts identical. The present paper reduces the number and size of selectors in these grammars. Indeed, it demonstrates that for every phrase-structure grammar, there exists an equivalent multisequential grammar having two homogeneous selectors, either of which has only two activated parts.