Ergodic properties of concurrent systems

Fuente: arXiv
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Main Authors: Abbes, Samy, Jugé, Vincent
Format: Preprint
Published: 2025
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author Abbes, Samy
Jugé, Vincent
author_facet Abbes, Samy
Jugé, Vincent
contents A concurrent system is defined as a monoid action of a trace monoid on a finite set of states. Concurrent systems represent state models where the state is distributed and where state changes are local. Starting from a spectral property on the combinatorics of concurrent systems, we prove the existence and uniqueness of a Markov measure on the space of infinite trajectories relatively to any weight distributions. In turn, we obtain a combinatorial result by proving that the kernel of the associated Möbius matrix has dimension 1; the Möbius matrix extends in this context the Möbius polynomial of a trace monoid. We study ergodic properties of irreducible concurrent systems and we prove a Strong law of large numbers. It allows us to introduce the speedup as a measurement of the average amount of concurrency within infinite trajectories. Examples are studied.
format Preprint
id arxiv_https___arxiv_org_abs_2505_12810
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Ergodic properties of concurrent systems
Abbes, Samy
Jugé, Vincent
Probability
Discrete Mathematics
Group Theory
A concurrent system is defined as a monoid action of a trace monoid on a finite set of states. Concurrent systems represent state models where the state is distributed and where state changes are local. Starting from a spectral property on the combinatorics of concurrent systems, we prove the existence and uniqueness of a Markov measure on the space of infinite trajectories relatively to any weight distributions. In turn, we obtain a combinatorial result by proving that the kernel of the associated Möbius matrix has dimension 1; the Möbius matrix extends in this context the Möbius polynomial of a trace monoid. We study ergodic properties of irreducible concurrent systems and we prove a Strong law of large numbers. It allows us to introduce the speedup as a measurement of the average amount of concurrency within infinite trajectories. Examples are studied.
title Ergodic properties of concurrent systems
topic Probability
Discrete Mathematics
Group Theory
url https://arxiv.org/abs/2505.12810