The trace coding problem is undecidable (extended abstract)
Autoři | |
---|---|
Rok publikování | 2001 |
Druh | Článek ve sborníku |
Konference | Automata, Languages and Programming : 28th International Colloquium, ICALP 2001, Proceedings |
Fakulta / Pracoviště MU | |
Citace | |
Obor | Obecná matematika |
Popis | We introduce the notion of weak morphisms of trace monoids and use it to deal with the problem of deciding the existence of codings between trace monoids. We prove that this problem is not recursively enumerable, which answers the question raised by Ochmanski in 1988. We also show its decidability when restricted to instances with domain monoids defined by acyclic dependence graphs. |
Související projekty: |