Contents

• Contents
• Acknowledgement
• Introduction
  • Grammar systems theory
  • Eco-grammar systems
  • Structure of the dissertation
    • Team behaviour of variants of simple eco-grammar systems
    • Generative power of some variants of simple eco-grammar systems
    • Watson-Crick complementarity
  • Concluding remarks
• Preliminaries
  • Formal language prerequisites
  • Lindenmayer systems
  • Simple eco-grammar systems
• Team behaviour of simple eco-grammar systems
  • Definitions and previous results in the non-extended case
  • Team behaviour in extended simple eco-grammar systems
• New operations in simple eco-grammar systems
  • Hybrid eco-grammar systems
  • Simple eco-grammar systems of type INS and REP
• Generative power of variants of simple eco-grammar systems
  • Remarks on random-context grammars
  • Extended tabled simple eco-grammar systems
  • Weak extended simple eco-grammar systems
• Watson-Crick systems
  • Definitions, examples
  • The main idea of the proofs
  • Standard Watson-Crick EDT0L systems
  • Standard Watson-Crick E0L systems
  • Standard Watson-Crick eco-grammar systems
• Summary
• Összefoglalás
• Bibliography
• List of Figures
• About this document ...