机构地区: 广西师范大学数学科学学院
出 处: 《广西师范大学学报(自然科学版)》 2013年第1期37-43,共7页
摘 要: 无前像位形(GOE)是元胞自动机的一个重要特征,它的存在关系到元胞自动机的可逆性。本文主要利用矩阵代数的原理,针对一类二元域上的特殊混合规则的线性二维元胞自动机进行讨论,给出了在不同的情况下,一个位形是GOE的充分必要条件,以及计算元胞自动机中GOE的个数的算法。 Garden of Eden (GOE) configuration is an important characteristic in cellular automata (CA) theory. Its existence relates to the reversibility of a CA. This article deals with a particular hybrid linear two-dimensional (2-D) CA in GF(2) (the Galois field with two elements) by using matrix algebra. Several necessary and sufficient conditions are provided,which guarantee a given configuration of being a GOE in different cases. Besides,the algorithm is proposed to obtain the number of GOEs in such a CA with the particular hybrid rule mentioned above.
领 域: [自动化与计算机技术] [自动化与计算机技术]