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題名 Topological entropy for shifts of finite type over Z and trees
作者 班榮超
Ban, Jung-Chao
Chang, Chih-Hung;Hu, Wen-Guei;Wu, Yu-Liang
貢獻者 應數系
關鍵詞 Tree-SFT; Topological entropy
日期 2022-09
上傳時間 6-Feb-2023 14:12:39 (UTC+8)
摘要 We study the topological entropy of hom tree-shifts and show that, although the topological entropy is not a conjugacy invariant for tree-shifts in general, it remains invariant for hom tree higher block shifts. In [16], [17], Petersen and Salama demonstrated the existence of topological entropy for tree-shifts and , where is the hom tree-shift derived from X. We characterize a necessary and sufficient condition when the equality holds for the case where X is a shift of finite type. Additionally, two novel phenomena have been revealed for tree-shifts. There is a gap in the set of topological entropy of hom tree-shifts of finite type, making such a set not dense. Last but not least, the topological entropy of a reducible hom tree-shift of finite type can be strictly larger than that of its maximal irreducible component.
關聯 Theoretical Computer Science, Vol.930, pp.24-32
資料類型 article
DOI https://doi.org/10.1016/j.tcs.2022.07.007
dc.contributor 應數系
dc.creator (作者) 班榮超
dc.creator (作者) Ban, Jung-Chao
dc.creator (作者) Chang, Chih-Hung;Hu, Wen-Guei;Wu, Yu-Liang
dc.date (日期) 2022-09
dc.date.accessioned 6-Feb-2023 14:12:39 (UTC+8)-
dc.date.available 6-Feb-2023 14:12:39 (UTC+8)-
dc.date.issued (上傳時間) 6-Feb-2023 14:12:39 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/143279-
dc.description.abstract (摘要) We study the topological entropy of hom tree-shifts and show that, although the topological entropy is not a conjugacy invariant for tree-shifts in general, it remains invariant for hom tree higher block shifts. In [16], [17], Petersen and Salama demonstrated the existence of topological entropy for tree-shifts and , where is the hom tree-shift derived from X. We characterize a necessary and sufficient condition when the equality holds for the case where X is a shift of finite type. Additionally, two novel phenomena have been revealed for tree-shifts. There is a gap in the set of topological entropy of hom tree-shifts of finite type, making such a set not dense. Last but not least, the topological entropy of a reducible hom tree-shift of finite type can be strictly larger than that of its maximal irreducible component.
dc.format.extent 105 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Theoretical Computer Science, Vol.930, pp.24-32
dc.subject (關鍵詞) Tree-SFT; Topological entropy
dc.title (題名) Topological entropy for shifts of finite type over Z and trees
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1016/j.tcs.2022.07.007
dc.doi.uri (DOI) https://doi.org/10.1016/j.tcs.2022.07.007