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Game Characterization of Probabilistic Bisimilarity, and Applications to Pushdown Automata

Vojtěch Forejt ; Petr Jančar ; Stefan Kiefer ; James Worrell.

We study the bisimilarity problem for probabilistic pushdown automata (pPDA) and subclasses thereof. Our definition of pPDA allows both probabilistic and non-deterministic branching, generalising the classical notion of pushdown automata (without epsilon-transitions). We first show a general&nbsp;[&hellip;]

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Countdown games, and simulation on (succinct) one-counter nets

Petr Jancar ; Petr Osicka ; Zdenek Sawa.

We answer an open complexity question by Hofman, Lasota, Mayr, Totzke (LMCS 2016) for simulation preorder on the class of succinct one-counter nets (i.e., one-counter automata with no zero tests where counter increments and decrements are integers written in binary); the problem was known to be&nbsp;[&hellip;]

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