arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.04843nlin.CGcs.DM
收藏

一个具有四种状态的强泛元胞自动机

A strongly universal cellular automaton with four states

Maurice Margenstern

摘要:

本文证明了在三维双曲空间的镶嵌{5,3,4}的十二网格中存在一个强泛元胞自动机,它具有四个状态,但它不像arXiv:2104.01561中的自动机那样具有五个状态,是旋转不变的.本文不是arXiv:2104.01561的改进。减少到四个国家的自动机的本文件的结果从放松的条件旋转不变性。然而,放松是不完整的:规则是不变的,相对于旋转的十二面体,这使它全局不变,这也使不变的一对夫妇的相对面的十二面体。由于有二十五个这样的旋转,可以认为减少到四个状态是重要的,尽管它暗示了放松。

英文摘要:

In this paper, we prove that there is a strongly universal cellular automaton in the dodecagrid, the tesselllation {5,3,4} of the hyperbolic 3D space, with four states but, it is not rotation invariant as the automaton of arXiv:2104.01561 is with five states. The present paper is not an improvement of arXiv:2104.01561. The reduction to four states of the automaton of the present paper results from a relaxation of the condition of rotation invariance. However, the relaxation is not complete: the rules are invariant with respect to rotations of the dodecahedron which leave it globally invariant which also leave invariant a couple of opposite faces of the dodecahedron. As there are twenty five such rotations, it can be considered that the reduction to four states is significant although the relaxation it implied.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑