Informace o publikaci
The omega-inequality problem for concatenation hierarchies of star-free languages
| Autoři | |
|---|---|
| Rok publikování | 2018 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Forum Mathematicum |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | https://www.degruyter.com/view/j/form.ahead-of-print/forum-2016-0028/forum-2016-0028.xml |
| Doi | https://doi.org/10.1515/forum-2016-0028 |
| Klíčová slova | Pseudovariety; relatively free profinite semigroup; ordered monoid; concatenation hierarchy; Straubing–Thérien hierarchy |
| Popis | The problem considered in this paper is whether an inequality of omega-terms is valid in a given level of a concatenation hierarchy of star-free languages. The main result shows that this problem is decidable for all (integer and half) levels of the Straubing-Therien hierarchy. |
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