no. 4
Homing vector automata
Salehi, Özlem1  ; Cem Say, A. C.1 ; D’Alessandro, Flavio2, 3
1 Boǧaziçi University, Department of Computer Engineering, Bebek 34342, Istanbul, Turkey.
2 Boğaziçi University, Department of Mathematics, Bebek 34342, Istanbul, Turkey.
3 Università di Roma “La Sapienza”, Dipartimento di Matematica, Piazzale Aldo Moro 2, 00185 Roma, Italy.
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 50 (2016) no. 4, pp. 371-386.

We introduce homing vector automata, which are finite automata augmented by a vector that is multiplied at each step by a matrix determined by the current transition, and have to return the vector to its original setting in order to accept the input. The computational power and properties of deterministic, nondeterministic, blind, non-blind, real-time and one-way versions of these machines are examined and compared to various related types of automata. A generalized version of the Stern−Brocot encoding method, suitable for representing strings on arbitrary alphabets, is also developed.

Reçu le :
Accepté le :
DOI : 10.1051/ita/2016017
Classification : 68Q45, 68Q05
Mots clés : Vector automata, group automata, Stern−Brocot
Salehi, Özlem 1 ; Cem Say, A. C. 1 ; D’Alessandro, Flavio 2, 3

1 Boǧaziçi University, Department of Computer Engineering, Bebek 34342, Istanbul, Turkey.
2 Boğaziçi University, Department of Mathematics, Bebek 34342, Istanbul, Turkey.
3 Università di Roma “La Sapienza”, Dipartimento di Matematica, Piazzale Aldo Moro 2, 00185 Roma, Italy. 
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Salehi, Özlem; Cem Say, A. C.; D’Alessandro, Flavio. Homing vector automata. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 50 (2016) no. 4, pp. 371-386. doi : 10.1051/ita/2016017. http://archive.numdam.org/articles/10.1051/ita/2016017/

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