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請使用永久網址來引用或連結此文件:
https://nccur.lib.nccu.edu.tw/handle/140.119/129989
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| 題名: | Tree-shifts: Irreducibility, mixing, and the chaos of tree-shifts |
| 作者: | 班榮超
Ban, Jung-Chao
Chang, Chih-Hung |
| 貢獻者: | 應數系 |
| 日期: | 2017-05 |
| 上傳時間: | 2020-05-27 09:03:03 (UTC+8) |
| 摘要: | Topological behavior, such as chaos, irreducibility, and mixing of a one-sided shift of finite type, is well elucidated. Meanwhile, the investigation of multidimensional shifts, for instance, textile systems, is difficult and only a few results have been obtained so far.
This paper studies shifts defined on infinite trees, which are called tree-shifts. Infinite trees have a natural structure of one-sided symbolic dynamical systems equipped with multiple shift maps and constitute an intermediate class between one-sided shifts and multidimensional shifts. We have shown not only an irreducible tree-shift of finite type but also a mixing tree-shift that is chaotic in the sense of Devaney. Furthermore, the graph and labeled graph representations of tree-shifts are revealed so that the verification of irreducibility and mixing of a tree-shift is equivalent to determining the irreducibility and mixing of matrices, respectively. This extends the classical results of one-sided symbolic dynamics.
A necessary and sufficient condition for the irreducibility and mixing of tree-shifts of finite type is demonstrated. Most important of all, the examination can be done in finite steps with an upper bound. |
| 關聯: | Transactions of the American Mathematical Society, Vol.369, No.12, pp.8389-8407 |
| 資料類型: | article |
| DOI 連結: | https://doi.org/10.1090/tran/6906 |
| DOI: | 10.1090/tran/6906 |
| 顯示於類別: | [應用數學系] 期刊論文
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