Salomaa, Arto

English

Apart from the massive parallelism of DNA strands, the phenomenon known as Watson-Crick complementarity, is basic both in the experiments and theory of DNA computing. The parallelism makes exhaustive searches possible, whereas the complementarity is a powerful computational tool. This paper investigates complementarity as a language-theoretic operation: "bad" words obtained through a generative process are replaced by their complementary ones. While this idea is applicable to any generative process, it seems particularly suitable for Lindenmayer systems. DOL systems augmented with a specific complementarity transition, "Watson-Crick DOL systems", are investigated in this paper. Many issues involved are conveniently expressed in terms of certain paths, "Watson- Crick walks", in an associated digraph

Salomaa Arto

University of Szeged

Watson-Crick walks and roads on DOL graphs

http://acta.bibl.u-szeged.hu/12618/1/cybernetica_014_numb_001_179-192.pdf

Watson-Crick walks and roads on DOL graphs

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University of Szeged