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Synchronizing Automata of Bounded Rank

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Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 7381))

Abstract

We reduce the problem of synchronization of an n-state automaton with letters of rank at most r < n to the problem of synchronization of an r-state automaton with constraints given by a regular language. Using this technique we construct a series of synchronizing n-state automata in which every letter has rank r < n and whose reset threshold is at least r 2 − r − 1 Moreover, if \(r > \frac{n}{2}\), such automata are strongly connected.

Supported by the Russian Foundation for Basic Research, grant 10-01-00793, and by the Presidential Program for young researchers, grant MK-266.2012.1. Author is also grateful to Erasmus Mundus Action 2 Partnerships — Triple I.

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References

  1. Almeida, J., Steinberg, B.: Matrix Mortality and the Černý-Pin Conjecture. In: Diekert, V., Nowotka, D. (eds.) DLT 2009. LNCS, vol. 5583, pp. 67–80. Springer, Heidelberg (2009)

    Chapter  Google Scholar 

  2. Ananichev, D., Gusev, V., Volkov, M.: Slowly Synchronizing Automata and Digraphs. In: Hliněný, P., Kučera, A. (eds.) MFCS 2010. LNCS, vol. 6281, pp. 55–65. Springer, Heidelberg (2010)

    Chapter  Google Scholar 

  3. Ananichev, D.S., Volkov, M.V., Zaks, Y.I.: Synchronizing automata with a letter of deficiency 2. Theor. Comput. Sci. 376, 30–41 (2007)

    Article  MathSciNet  MATH  Google Scholar 

  4. Béal, M.-P., Berlinkov, M.V., Perrin, D.: A quadratic upper bound on the size of a synchronizing word in one-cluster automata. Int. J. Found. Comput. Sci. 22(2), 277–288 (2011)

    Article  MATH  Google Scholar 

  5. Černý, J.: Poznámka k homogénnym eksperimentom s konečnými automatami. Matematicko-fyzikalny Časopis Slovensk. Akad. Vied 14(3), 208–216 (1964) (in Slovak)

    MATH  Google Scholar 

  6. Dubuc, L.: Sur les automates circulaires et la conjecture de Černý. RAIRO Inform. Théor. Appl. 32, 21–34 (1998) (in French)

    MathSciNet  Google Scholar 

  7. Gusev, V.V.: Lower Bounds for the Length of Reset Words in Eulerian Automata. In: Delzanno, G., Potapov, I. (eds.) RP 2011. LNCS, vol. 6945, pp. 180–190. Springer, Heidelberg (2011)

    Chapter  Google Scholar 

  8. Kari, J.: Synchronizing finite automata on Eulerian digraphs. Theoret. Comput. Sci. 295, 223–232 (2003)

    Article  MathSciNet  MATH  Google Scholar 

  9. Martyugin, P.V.: Lower bounds for the length of the shortest carefully synchronizing words for two- and three-letter partial automata. Diskretn. Anal. Issled. Oper. 15(4), 44–56 (2008) (in Russian)

    MathSciNet  MATH  Google Scholar 

  10. Pin, J.-E.: On two combinatorial problems arising from automata theory. Ann. Discrete Math. 17, 535–548 (1983)

    MATH  Google Scholar 

  11. Rystsov, I.K.: Estimation of the length of reset words for automata with simple idempotents. Cybernetics and Systems Analysis 36(3), 339–344 (2000)

    Article  MathSciNet  MATH  Google Scholar 

  12. Sandberg, S.: 1 Homing and Synchronizing Sequences. In: Broy, M., Jonsson, B., Katoen, J.-P., Leucker, M., Pretschner, A. (eds.) Model-Based Testing of Reactive Systems. LNCS, vol. 3472, pp. 5–33. Springer, Heidelberg (2005)

    Chapter  Google Scholar 

  13. Trahtman, A.N.: The Černý conjecture for aperiodic automata. Discrete Math. Theor. Comput. Sci. 9(2), 3–10 (2007)

    MathSciNet  MATH  Google Scholar 

  14. Trahtman, A.N.: Modifying the Upper Bound on the Length of Minimal Synchronizing Word. In: Owe, O., Steffen, M., Telle, J.A. (eds.) FCT 2011. LNCS, vol. 6914, pp. 173–180. Springer, Heidelberg (2011)

    Chapter  Google Scholar 

  15. Volkov, M.V.: Synchronizing Automata and the Černý Conjecture. In: Martín-Vide, C., Otto, F., Fernau, H. (eds.) LATA 2008. LNCS, vol. 5196, pp. 11–27. Springer, Heidelberg (2008)

    Chapter  Google Scholar 

  16. Volkov, M.V.: Synchronizing automata preserving a chain of partial orders. Theoret. Comput. Sci. 410, 2992–2998 (2009)

    Article  MathSciNet  MATH  Google Scholar 

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Gusev, V.V. (2012). Synchronizing Automata of Bounded Rank. In: Moreira, N., Reis, R. (eds) Implementation and Application of Automata. CIAA 2012. Lecture Notes in Computer Science, vol 7381. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31606-7_15

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  • DOI: https://doi.org/10.1007/978-3-642-31606-7_15

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-31605-0

  • Online ISBN: 978-3-642-31606-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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