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A note on pure codes

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Abstract

This study extends the understanding of two-element pure codes. Some characteristics of different length two-element pure codes are studied. It is shown that a language is a pure code which contains two distinct primitive words u and v with different lengths if and only if the regular expression u + v + of the two distinct words u and v is primitive.

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Correspondence to C. C. Huang.

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Huang, C.C. A note on pure codes. Acta Informatica 47, 347–357 (2010). https://doi.org/10.1007/s00236-010-0122-7

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  • DOI: https://doi.org/10.1007/s00236-010-0122-7

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