Semigroups related to subshifts of graphs

نویسندگان

  • Mark V. Lawson
  • MARK V. LAWSON
چکیده

We characterise in terms of Zappa-Szép products a class of semigroups which arise from actions of groupoids on semigroups constructed from subshifts of graphs.

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تاریخ انتشار 2008