Decidability results for Watson–Crick D0L systems with nonregular triggers
نویسندگان
چکیده
منابع مشابه
A new proof for the decidability of D0L ultimate periodicity
L systems were originally introduced by A. Lindenmayer to model the development of simple filamentous organisms [6, 7]. The challenging and fruitful study of these systems in the 70s and 80s created many new results and notions [9]. In this paper we consider the important problem of recognizing ultimately periodic D0L sequences. Let A be a finite alphabet and denote the empty word by ε . A D0L ...
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D0L systems constitute the simplest and most widely studied type of Lindenmayer systems. They have the remarkable property of generating their language as a (word) sequence and, consequently, are very suitable for modeling growth properties. In this paper a new type of D0L systems is introduced, where the parallelism presented in L systems is combined with the paradigm of (Watson-Crick) complem...
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Watson-Crick D0L systems, introduced in 1997 by V. Mihalache and A. Salomaa, arise from two major principles: the Lindenmayer rewriting and the Watson-Crick complementarity principle. Complementarity can be viewed as a purely language-theoretic operation. Majority of a certain type of symbols in a string (purines vs. pyrimidines) triggers a transition to the complementary string. The paper deal...
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ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2003
ISSN: 0304-3975
DOI: 10.1016/s0304-3975(03)00087-2