Abstract
We establish that a set of finite graphs of tree-width at most k is recognizable (with respect to the algebra of graphs with an unbounded number of sources) if and only if it is recognizable with respect to the algebra of graphs with at most k sources. We obtain a somewhat stronger result for sets of simple finite graphs of tree-width at most k.
Supported by ESPRIT-Basic Research Working group “COMPUGRAPH”
Supported by the Swedish Natural Science Research Council
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© 1994 Springer-Verlag Berlin Heidelberg
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Courcelle, B., Lagergren, J. (1994). Recognizable sets of graphs of bounded tree-width. In: Schneider, H.J., Ehrig, H. (eds) Graph Transformations in Computer Science. Lecture Notes in Computer Science, vol 776. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-57787-4_9
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DOI: https://doi.org/10.1007/3-540-57787-4_9
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