A Universal Cellular Automaton on the Ternary Heptagrid

被引:14
作者
Margenstern, Maurice [1 ]
Song, Yu [1 ]
机构
[1] Univ Metz, Lab Informat Theor & Appl, Dept Informat, EA 3097,IUT Metz, F-57045 Metz, France
关键词
Cellular automata; hyperbolic plane; tessellations; universality;
D O I
10.1016/j.entcs.2008.12.038
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
In this paper, we construct the first weakly universal cellular automaton on the ternary heptagrid. It requires six states only. It provides a universal automaton with less states than in the case of the pentagrid where the best result is nine states, a result also recently established by the authors.
引用
收藏
页码:167 / 185
页数:19
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