The Unique Decipherability in the Monoid of Regular Languages is Undecidable
: Karhumaki J, Saarela A
Publisher: IOS PRESS
: 2011
: Fundamenta Informaticae
: FUNDAMENTA INFORMATICAE
: FUND INFORM
: 1-4
: 110
: 1-4
: 197
: 200
: 4
: 0169-2968
DOI: https://doi.org/10.3233/FI-2011-537(external)
We show by a simple reduction that the unique decipherability problem in the language monoid of regular languages over a non-unary alphabet is undecidable.