• Media type: Text; E-Article; Electronic Conference Proceeding
  • Title: On the Complexity of Multi-Pushdown Games
  • Contributor: Meyer, Roland [Author]; van der Wall, Sören [Author]
  • Published: Schloss Dagstuhl – Leibniz-Zentrum für Informatik, 2020
  • Language: English
  • DOI: https://doi.org/10.4230/LIPIcs.FSTTCS.2020.52
  • Keywords: infinite state ; multi-pushdown ; concurrency ; games ; complexity
  • Origination:
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  • Description: We study the influence of parameters like the number of contexts, phases, and stacks on the complexity of solving parity games over concurrent recursive programs. Our first result shows that k-context games are b-EXPTIME-complete, where b = max{k-2, 1}. This means up to three contexts do not increase the complexity over an analysis for the sequential case. Our second result shows that for ordered k-stack as well as k-phase games the complexity jumps to k-EXPTIME-complete.
  • Access State: Open Access