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A behavioural pseudometric for continuous-time Markov processes

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arxiv 2501.13008 v1 pith:YPSKSTPU submitted 2025-01-22 cs.LO

A behavioural pseudometric for continuous-time Markov processes

classification cs.LO
keywords processesbehaviouralcontinuous-timediscrete-timejumpspseudometricstateapproach
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In this work, we generalize the concept of bisimulation metric in order to metrize the behaviour of continuous-time processes. Similarly to what is done for discrete-time systems, we follow two approaches and show that they coincide: as a fixpoint of a functional and through a real-valued logic. The whole discrete-time approach relies entirely on the step-based dynamics: the process jumps from state to state. We define a behavioural pseudometric for processes that evolve continuously through time, such as Brownian motion or involve jumps or both.

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