Infinite minimal half synchronizing

Document Type : Research Paper

Author

Department of Mathematics, Dezful branch, Islamic Azad University, Dezful, Iran

Abstract

‎‎Synchronized systems‎, ‎has attracted much attention in 1986 by F. Blanchard and G. Hansel, and extension of them has been of interest since that notion was introduced in 1992 by D. Fiebig and U. Fiebig. ‎One was via half synchronized systems; that is‎, ‎systems having half synchronizing blocks‎. ‎In fact‎, ‎if for a left transitive ray such as $\ldots x_{-1}x_{0}m$ and $mv$ any block in $X$ one has again $\ldots x_{-1}x_{0}mv$ a left ray in $X$‎, ‎then $m$ is called half synchronizing. ‎A block $m$ is minimal (half-)synchronizing, ‎whenever $w \varsubsetneq m$‎, ‎$w$ is not (half-)synchronizing‎. ‎Examples with $\ell$ minimal (half-)synchronizing blocks has been given for $0\leq \ell\leq \infty$‎.‎‎ ‎‎‎To do this we consider a $\beta$-shift and will replace 1 with some blocks $u_i$‎ ‎to have countable many new systems‎. ‎Then‎, ‎we will merge them‎.‎

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References

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History

  • Receive Date: 16 May 2022
  • Revise Date: 10 August 2022
  • Accept Date: 27 August 2022

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