The reachability problem for two-dimensional vector addition systems with states

We prove that the reachability problem for two-dimensional vector addition systems with states is NL-complete or PSPACE-complete, depending on whether the numbers in the input are encoded in unary or binary. As a key underlying technical result, we show that, if a configuration is reachable, then th...

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Bibliographic Details
Main Authors: Blondin, M, Englert, M, Finkel, A, Göller, S, Haase, C, Lazic, R, McKenzie, P, Totzke, P
Format: Journal article
Language:English
Published: Association for Computing Machinery 2021