RAIRO - Theoretical Informatics and Applications
- RAIRO - Theoretical Informatics and Applications / Volume 42 / Issue 03 / July 2008, pp 467-475
- © EDP Sciences, 2008
- Published online by Cambridge University Press: 24 March 2011
- DOI: http://dx.doi.org/10.1051/ita:2008010 (About DOI)
Research Article
From Bi-ideals to Periodicity
Buls, Jānisa1 and Lorencs, Aivarsa2
a1 Department of Mathematics, University of Latvia, Raiņa bulvāris 19, Rīga, 1586, Latvia; buls@fmf.lu.lv; web site:
a2 Institute of Electronics and Computer Science, Dzērbenes street 14, Rīga, 1006, Latvia; lorencs@edi.lv
Abstract
The necessary and sufficient conditions are extracted for periodicity of bi-ideals. They cover infinitely and finitely generated bi-ideals.
(Online publication June 3 2008)
Key Words:
- Periodic words;
- bi-ideals;
- the sequence generates the bi-ideal;
- finitely generated bi-ideals
Mathematics Subject Classification:
- 68R15;
- 94A55;
- 68Q15
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