Abstract
Deterministic and non-deterministic multi-head finite automata are known to characterize the deterministic and non- deterministic logarithmic space complexity classes, respectively. Recently, Morita introduced reversible multi-head finite automata (RMFAs), and posed the question of whether RMFAs characterize reversible logarithmic space as well. Here, we resolve the question affirmatively, by exhibiting a clean RMFA simulation of logarithmic space reversible Turing machines. Indirectly, this also proves that reversible and deterministic multi-head finite automata recognize the same languages.
Original language | English |
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Title of host publication | Language and Automata Theory and Applications : 6th International Conference, LATA 2012, A Coruña, Spain, March 5-9, 2012. Proceedings |
Editors | Adrian-Horia Dediu, Carlos Martín-Vide |
Number of pages | 11 |
Publisher | Springer |
Publication date | 2012 |
Pages | 95–105 |
ISBN (Print) | 978-3-642-28331-4 |
ISBN (Electronic) | 978-3-642-28332-1 |
DOIs | |
Publication status | Published - 2012 |
Event | 6th International Conference on Language and Automata Theory and Applications - A Coruña, Spain Duration: 5 Mar 2012 → 9 Mar 2012 Conference number: 6 |
Conference
Conference | 6th International Conference on Language and Automata Theory and Applications |
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Number | 6 |
Country/Territory | Spain |
City | A Coruña |
Period | 05/03/2012 → 09/03/2012 |
Series | Lecture notes in computer science |
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Volume | 7183 |
ISSN | 0302-9743 |