Semi−synchronous transductions

Semi-synchronously rational relations generalise synchronised rational relations in a natural way. We discuss here some of their basic properties, among them a \"Cobham-Semenov-like\" dichotomy theorem. Our main result is a characterisation of bijective semi-synchronously rational transduc...

Olles dieđut

Bibliográfalaš dieđut
Váldodahkki: Barany, V
Materiálatiipa: Journal article
Almmustuhtton: 2008
Govvádus
Čoahkkáigeassu:Semi-synchronously rational relations generalise synchronised rational relations in a natural way. We discuss here some of their basic properties, among them a \"Cobham-Semenov-like\" dichotomy theorem. Our main result is a characterisation of bijective semi-synchronously rational transductions as those bijections mapping regular relations to regular ones and non-regular relations to non-regular ones.