VOLUME 7 2002 NUMBER 1

Sergei V. Avgustinovich, Anna E. Frid:
Words Avoiding Abelian Inclusions3–9
Joost Engelfriet, Zoltán Fülöp, Heiko Vogler:
Bottom-Up and Top-Down Tree Series Transformations11–70
Ferenc Gécseg, Balázs Imreh:
On Monotone Automata and Monotone Languages71–82
Lucien Haddad, Hajime Machida, Ivo G. Rosenberg:
Maximal and Minimal Partial Clones83–93
Carlo Mereghetti, Beatrice Palano:
The Parallel Complexity of Deterministic and Probabilistic Automata95–108
Albert R. Meyer, Alexander Rabinovich:
Valid Identity Problem for Shuffle Regular Expressions109–125
Eileen Peluso, Jonathan Goldstine, Shashi Phoha:
Normal Processes for Modeling the Desired Behavior of Distributed Autonomous Discrete Event Systems127–142
Huei-Jan Shyr:
Regular Nests143–157