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Article Dans Une Revue Discrete Mathematics and Theoretical Computer Science Année : 2015

Parameterized complexity of synchronization and road coloring

Résumé

First, we close the multi-parameter analysis of a canonical problem concerning short reset words (SYN) initiated by Fernau et al. (2013). Namely, we prove that the problem, parameterized by the number of states, does not admit a polynomial kernel unless the polynomial hierarchy collapses. Second, we consider a related canonical problem concerning synchronizing road colorings (SRCP). Here we give a similar complete multi-parameter analysis. Namely, we show that the problem, parameterized by the number of states, admits a polynomial kernel and we close the previous research of restrictions to particular values of both the alphabet size and the maximum length of a reset word.
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Dates et versions

hal-01196846 , version 1 (10-09-2015)

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Vojtěch Vorel, Adam Roman. Parameterized complexity of synchronization and road coloring. Discrete Mathematics and Theoretical Computer Science, 2015, Vol. 17 no. 1 (1), pp.283--305. ⟨10.46298/dmtcs.2103⟩. ⟨hal-01196846⟩

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