{"title":"Sensitivity–Chaos Equivalence in Linear Cellular Automata","authors":"Chunlin Liu, Changlin Wang","doi":"10.1007/s10955-026-03714-y","DOIUrl":null,"url":null,"abstract":"<div><p>We study the interplay between various notions of chaos for scalar linear cellular automata over <span>\\(\\mathbb Z_m\\)</span>. We show that the following properties are equivalent:</p><ul>\n <li>\n <p>sensitivity (equivalently, the system is neither equicontinuous nor mean equicontinuous);</p>\n </li>\n <li>\n <p>mean sensitivity (equivalently, <i>k</i>-sensitivity and <i>k</i>-mean sensitivity for every integer <span>\\(k\\ge 2\\)</span>);</p>\n </li>\n <li>\n <p>Li–Yorke chaos (equivalently, mean Li–Yorke chaos and <i>k</i>-mean Li–Yorke sensitivity for every integer <span>\\(k\\ge 2\\)</span>);</p>\n </li>\n <li>\n <p>the existence of a non-atomic ergodic invariant probability measure whose support contains the null configuration.</p>\n </li>\n </ul><p> As a consequence, each such scalar linear cellular automaton is either equicontinuous (and hence mean equicontinuous) or simultaneously mean sensitive and Li–Yorke chaotic.</p></div>","PeriodicalId":667,"journal":{"name":"Journal of Statistical Physics","volume":"193 10","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Statistical Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10955-026-03714-y","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MATHEMATICAL","Score":null,"Total":0}
引用次数: 0
Abstract
We study the interplay between various notions of chaos for scalar linear cellular automata over \(\mathbb Z_m\). We show that the following properties are equivalent:
sensitivity (equivalently, the system is neither equicontinuous nor mean equicontinuous);
mean sensitivity (equivalently, k-sensitivity and k-mean sensitivity for every integer \(k\ge 2\));
Li–Yorke chaos (equivalently, mean Li–Yorke chaos and k-mean Li–Yorke sensitivity for every integer \(k\ge 2\));
the existence of a non-atomic ergodic invariant probability measure whose support contains the null configuration.
As a consequence, each such scalar linear cellular automaton is either equicontinuous (and hence mean equicontinuous) or simultaneously mean sensitive and Li–Yorke chaotic.
期刊介绍:
The Journal of Statistical Physics publishes original and invited review papers in all areas of statistical physics as well as in related fields concerned with collective phenomena in physical systems.