Post-plus languages

@article{Yu2001PostplusL,
  title={Post-plus languages},
  author={S. S. Yu},
  journal={Theor. Comput. Sci.},
  year={2001},
  volume={255},
  pages={85-105}
}
In this paper, a post-plus language is de.ned as a language which contains all the catenations of each word in the language with a proper su0x of this word. The set of all d-primitive words is a natural post-plus language. The family of all post-plus languages is a subfamily of all non-counting languages. Some basic properties and characterizations of post… CONTINUE READING