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This paper presentsnew models for generatingmatrix languages. These models are based on multigenerative grammar systems that simultaneouslygenerateseveralstrings in a parallel way....
We continue the investigation of P coloniesintroduced in [7], of abstract computing devices composed of independent agents, acting and evolving in a shared environment. We determin...
Abstract. This paper introduces deriuation table.sthat representa complete grammatical derivations as whole in a vertical way. These tables are obtained by writing the consecutives...
A scattered context grammar, G, erases nonterminals in a k-limited way, where k ≥ 1, if in every sentential form of any derivation, between every two symbols from which G derive...
We study sequential colonies introduced in [5], [9] from the point of view of their environmental structures. We give expressions for the languages Life, Garden-of-Eden, Doomsday a...