Reachability in symmetric VASS

Fuente: arXiv
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Autori principali: Kamiński, Łukasz, Lasota, Sławomir
Natura: Preprint
Pubblicazione: 2025
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author Kamiński, Łukasz
Lasota, Sławomir
author_facet Kamiński, Łukasz
Lasota, Sławomir
contents We investigate the reachability problem in symmetric vector addition systems with states (VASS), where transitions are invariant under a group of permutations of coordinates. One extremal case, the trivial groups, yields general VASS. In another extremal case, the symmetric groups, we show that the reachability problem can be solved in PSPACE, regardless of the dimension of input VASS (to be contrasted with Ackermannian complexity in general VASS). We also consider other groups, in particular alternating and cyclic ones. Furthermore, motivated by the open status of the reachability problem in data VASS, we estimate the gain in complexity when the group arises as a combination of the trivial and symmetric groups.
format Preprint
id arxiv_https___arxiv_org_abs_2506_23578
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Reachability in symmetric VASS
Kamiński, Łukasz
Lasota, Sławomir
Formal Languages and Automata Theory
Computation and Language
We investigate the reachability problem in symmetric vector addition systems with states (VASS), where transitions are invariant under a group of permutations of coordinates. One extremal case, the trivial groups, yields general VASS. In another extremal case, the symmetric groups, we show that the reachability problem can be solved in PSPACE, regardless of the dimension of input VASS (to be contrasted with Ackermannian complexity in general VASS). We also consider other groups, in particular alternating and cyclic ones. Furthermore, motivated by the open status of the reachability problem in data VASS, we estimate the gain in complexity when the group arises as a combination of the trivial and symmetric groups.
title Reachability in symmetric VASS
topic Formal Languages and Automata Theory
Computation and Language
url https://arxiv.org/abs/2506.23578