Marcus External Contextual Grammars: From One to Many Dimensions

  • Authors:
  • Victor Mitrana

  • Affiliations:
  • (Correspd.) Fac. of Math. and Comp. Sci., Univ. of Bucharest, Str. Academiei 14, 70109, Bucharest, Romania and Res. Grp. on Math. Ling., Rovira i Virgili Univ., Pça. Imperial Tàrraco 1, ...

  • Venue:
  • Fundamenta Informaticae - Contagious Creativity - In Honor of the 80th Birthday of Professor Solomon Marcus
  • Year:
  • 2004

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Abstract

This work is a continuation of [9]. We extend the multi-dimensional external contextual grammars introduced in the aforementioned work with the possibility of adjoining contexts in a selective way. An investigation of some mathematical properties (computational power and recognition complexity) of these new variants of contextual grammars is done via a constant comparison with the corresponding properties of classic Marcus external contextual grammars with or without choice.