On the Expressiveness of Communication Channels for Object Nets

  • Authors:
  • Michael Kohler-Bußmeier;Frank Heitmann

  • Affiliations:
  • (Correspd.) University of Hamburg, Department of Informatics, Vogt-Kölln-Str. 30, D-22527 Hamburg. koehler@informatik.uni-hamburg.de;University of Hamburg, Department of Computer Science, Vogt-Kölln-Str. 30, D-22527 Hamburg. heitmann@informatik.uni-hamburg.de

  • Venue:
  • Fundamenta Informaticae - Concurrency Specification and Programming (CS&P)
  • Year:
  • 2009

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Abstract

In this work we present object net systems, i.e. Petri nets with nets as token objects, which are equipped with channels that allow to transfer net-tokens in the vertical dimension of the nested marking. These channels are a modelling element powerful enough to describe a direct simulation of counter programs which shows that typical net problems like boundedness, coverability, and reachability are undecidable.