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Original Articles

Morphisms preserving densities

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Pages 65-189 | Received 20 Jun 2000, Published online: 19 Mar 2007

References

  • Jürgensen , H. , Konstantinidis , S. and Codes . 1997 . Handbook of Formal Language Theory , Edited by: Rozenberg , G. and Salomaa , A. Vol. 1 , 511 – 607 . Berlin : Springer- Verlag .
  • Jürgensen , H. and Yu , S.S. 1991 . Relations on free monoids, their independent sets, and codes . Internat, J.Comput.Math. , 40 : 17 – 46 .
  • Jürgensen , H. and Yu , S.S. Dependence Systems and Hierarchies of Families of Languages Manuscript, In preparation.
  • Lâm , N.H. 1999 . “ Vietnam National Centre for Natural Science and Technology ” . In Maximal Independent Sets in Certain Subword Orders , Hanoi : Institute of Mathematics . Preprint 99/31
  • Long , D.Y. 1989 . k-Outfix codes . Chinese Ann.Math.Ser.A , 10 : 94 – 99 . in Chinese.
  • Long , D.Y. 1990 . k-Prefix codes and k-infix codes . Acta Math.Sinica , 33 : 414 – 421 . in Chinese.
  • Long , D.Y. Abstracts, Second International Colloquium on Words, Languages, and Combinatorics . n-Infix-outfix codes . 25-28 . pp. 50 – 51 . Kyoto
  • Long , D.Y. 1994 . k-Bifix codes . Riv.Mat.Pura Appl. , 15 : 33 – 55 .
  • Shyr , H.J. 1991 . Free Monoids and Languages , Taichung : Hon Min Book Company .
  • Thierrin , G. and Yu , S.S. 1991 . Shuffle relations and codes . J.Inform, and Optim.Sci. , 12 : 441 – 449 .
  • Van , D.L. 1998 . “ Vietnam National Centre for Natural Science and Technology ” . In Embedding Problem for Codes Defined by Binary Relations , Hanoi : Institute of Mathematics . Preprint 98/A22
  • Wu , H.L. 1992 . Some Properties of Certain Homomorphisms on a Free Monoid Manuscript.

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