Laboratoire Bordelais de Recherche en Informatique
14 pages
English

Laboratoire Bordelais de Recherche en Informatique

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14 pages
English
Le téléchargement nécessite un accès à la bibliothèque YouScribe
Tout savoir sur nos offres

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Niveau: Supérieur
Laboratoire Bordelais de Recherche en Informatique, ura cnrs 1 304, Université Bordeaux I, 351, cours de la Libération, 33 405 Talence Cedex, France. Rapport de Recherche Numéro 1177-97 Reversible space-time simulation of cellular automata Jérôme O. Durand-Lose 1 LaBRI, ura cnrs 1 304, Université Bordeaux I, 351, cours de la Libération, F-33 405 Talence Cedex, France. We briey recall the denitions of Cellular automata (ca), simulation, re- versibility and Partitioned cellular automata (pca) as dened by Morita. We call the sequence of the iterated congurations of a conguration a space-time diagram. We dene an embedding relation between space-time diagrams and a space-time simulation relation between ca. We built a space-time simulation of any ca by a reversible pca (r-pca). Finally, we state our main result: there are reversible ca able to space-time simulate any ca of the same dimension. Key words: Cellular automata, space-time simulation, intrinsic universality and reversibility. 1 Introduction Reversibility corresponds to the conservation of information and energy. It allows unambigu- ous backtracking. In computer science, reversible is studied in order to design computers which would waste less energy.

  • diagram gener

  • over

  • cellular automata

  • any space-time

  • time simulation

  • local function

  • generates any diagram

  • various ways

  • simulate any


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Extrait

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