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Original Articles

Cyclic Permutations of Letters of Words in Languages over an Alphabet

Pages 377-394 | Received 01 Apr 1985, Published online: 18 Jun 2013

References

  • Eilenberg , S. 1974 . Automata, Languages and Machines , Vol. A , New York : Academic Press .
  • Ginsburg , S. 1966 . The Mathematical Theory of Context-Free Languages , New York : McGraw-Hill Book Company .
  • Haines , L.H. 1969 . On Free Monoids Partially Ordered by Embedding . Journal of Combinatorial Theory , 6 : 94 – 98 .
  • Oshiba , T. 1972 . On Permuting Letters of Words in Context-free Languages . Information and Control , 20 : 405 – 409 .
  • Petrich , M. 1963 . Introduction to Semigroups , Columbus : Charles E. Merrill Publishing Co. .
  • Ruohonen , K. 1977 . On Circular Words and (ω* + ω) – Powers of Words . Elektronische Informationsverabeitung und Kybernetik EIK , 13 : 3 – 12 .
  • Salomaa , A. 1973 . Formal Languages , New York : Academic Press .
  • Thierrin , G. 1957 . Contribution a la theorie des anneauxet des demigroupes . Comment Math. Helv. , 32 : 33 – 112 .

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