Developments in language theory ; 8th International Conference, DLT 2004, Auckland, New Zealand, December 13-17, Proceedings

Basic Notions of Reaction Systems / A Kleene Theorem for a Class of Communicating Automata with Effective Algorithms / Algebraic and Topological Models for DNA Recombinant Processes / Contributed Papers : Regular Expressions for Two-Dimensional Languages Over One-Letter Alphabet / On Competence in CD Grammar Systems / The Dot-Depth and the Polynomial Hierarchy Correspond on the Delta Levels, and other