Number-conserving cellular automata I:: decidability

被引:59
作者
Durand, B
Formenti, E
Róka, Z
机构
[1] Lab Informat Fondamentale Marseille, F-13453 Marseille 13, France
[2] IUT Metz, LITA, F-57045 Metz, France
关键词
cellular automata; decidability;
D O I
10.1016/S0304-3975(02)00534-0
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We prove that definitions of number-conserving cellular automata found in literature are equivalent. A necessary and sufficient condition for cellular automata to be number-conserving is proved. Using this condition, we give a quasi-linear time algorithm to decide number-conservation. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:523 / 535
页数:13
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