A new class of algebraic series having a decidable equivalence problem

  • Authors:
  • Juha Honkala

  • Affiliations:
  • Department of Mathematics, University of Turku, FIN-20014 Turku, Finland

  • Venue:
  • Fundamenta Informaticae
  • Year:
  • 2002

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Abstract

We introduce a new class of algebraic series with noncommuting variables having a decidable equivalence problem. As a tool we consider star roots of formal power series.