On the structure of solution-sets to regular word equations
Keyword(s):
AbstractFor quadratic word equations, there exists an algorithm based on rewriting rules which generates a directed graph describing all solutions to the equation. For regular word equations – those for which each variable occurs at most once on each side of the equation – we investigate the properties of this graph, such as bounds on its diameter, size, and DAG-width, as well as providing some insights into symmetries in its structure. As a consequence, we obtain a combinatorial proof that the problem of deciding whether a regular word equation has a solution is in NP.
2020 ◽
Vol 30
(04)
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pp. 731-819
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2016 ◽
Vol 26
(05)
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pp. 843-886
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2011 ◽
Vol 22
(02)
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pp. 345-375
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Keyword(s):
2010 ◽
Vol DMTCS Proceedings vol. AN,...
(Proceedings)
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1978 ◽
Vol 36
(2)
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pp. 310-311
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2009 ◽
Vol 28
(9)
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pp. 2437-2439
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