On abelian versions of critical factorization theorem

@article{Avgustinovich2012OnAV,
  title={On abelian versions of critical factorization theorem},
  author={Sergey V. Avgustinovich and Juhani Karhum{\"a}ki and Svetlana Puzynina},
  journal={RAIRO Theor. Informatics Appl.},
  year={2012},
  volume={46},
  pages={3-15}
}
In the paper we study abelian versions of the critical factorization theorem. We investigate both similarities and differences between the abelian powers and the usual powers. The results we obtained show that the constraints for abelian powers implying periodicity should be quite strong, but still natural analogies exist. 
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