Reversible multi-head finite automata characterize reversible logarithmic space

Holger Bock Axelsen

12 Citations (Scopus)

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 languageEnglish
Title of host publicationLanguage and Automata Theory and Applications : 6th International Conference, LATA 2012, A Coruña, Spain, March 5-9, 2012. Proceedings
EditorsAdrian-Horia Dediu, Carlos Martín-Vide
Number of pages11
PublisherSpringer
Publication date2012
Pages95–105
ISBN (Print)978-3-642-28331-4
ISBN (Electronic)978-3-642-28332-1
DOIs
Publication statusPublished - 2012
Event6th International Conference on Language and Automata Theory and Applications - A Coruña, Spain
Duration: 5 Mar 20129 Mar 2012
Conference number: 6

Conference

Conference6th International Conference on Language and Automata Theory and Applications
Number6
Country/TerritorySpain
CityA Coruña
Period05/03/201209/03/2012
SeriesLecture notes in computer science
Volume7183
ISSN0302-9743

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