The Complexity of Bisimulation and Simulation on Finite Systems

In this paper the computational complexity of the (bi)simulation problem over restricted graph classes is studied. For trees given as pointer structures or terms the (bi)simulation problem is complete for logarithmic space or NC$^1$, respectively. This solves an open problem from Balc\'azar, Ga...

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Main Authors: Moses Ganardi, Stefan Göller, Markus Lohrey
Format: Article
Language:English
Published: Logical Methods in Computer Science e.V. 2018-10-01
Series:Logical Methods in Computer Science
Subjects:
Online Access:https://lmcs.episciences.org/4561/pdf
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author Moses Ganardi
Stefan Göller
Markus Lohrey
author_facet Moses Ganardi
Stefan Göller
Markus Lohrey
author_sort Moses Ganardi
collection DOAJ
description In this paper the computational complexity of the (bi)simulation problem over restricted graph classes is studied. For trees given as pointer structures or terms the (bi)simulation problem is complete for logarithmic space or NC$^1$, respectively. This solves an open problem from Balc\'azar, Gabarr\'o, and S\'antha. Furthermore, if only one of the input graphs is required to be a tree, the bisimulation (simulation) problem is contained in AC$^1$ (LogCFL). In contrast, it is also shown that the simulation problem is P-complete already for graphs of bounded path-width.
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spelling doaj.art-5a8df5d4b9d6402e8463de7d5b8f4af82024-03-08T10:27:52ZengLogical Methods in Computer Science e.V.Logical Methods in Computer Science1860-59742018-10-01Volume 14, Issue 410.23638/LMCS-14(4:5)20184561The Complexity of Bisimulation and Simulation on Finite SystemsMoses GanardiStefan GöllerMarkus LohreyIn this paper the computational complexity of the (bi)simulation problem over restricted graph classes is studied. For trees given as pointer structures or terms the (bi)simulation problem is complete for logarithmic space or NC$^1$, respectively. This solves an open problem from Balc\'azar, Gabarr\'o, and S\'antha. Furthermore, if only one of the input graphs is required to be a tree, the bisimulation (simulation) problem is contained in AC$^1$ (LogCFL). In contrast, it is also shown that the simulation problem is P-complete already for graphs of bounded path-width.https://lmcs.episciences.org/4561/pdfcomputer science - logic in computer science
spellingShingle Moses Ganardi
Stefan Göller
Markus Lohrey
The Complexity of Bisimulation and Simulation on Finite Systems
Logical Methods in Computer Science
computer science - logic in computer science
title The Complexity of Bisimulation and Simulation on Finite Systems
title_full The Complexity of Bisimulation and Simulation on Finite Systems
title_fullStr The Complexity of Bisimulation and Simulation on Finite Systems
title_full_unstemmed The Complexity of Bisimulation and Simulation on Finite Systems
title_short The Complexity of Bisimulation and Simulation on Finite Systems
title_sort complexity of bisimulation and simulation on finite systems
topic computer science - logic in computer science
url https://lmcs.episciences.org/4561/pdf
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