On codes concerning bi-infinite words

In this paper we consider a subclass of circular codes called Z-codes. Some tests of Sardinas-Patterson type for Z-codes are given when they are finite , or regular languages. As consequences, we prove again the results of Beal and Restivo, relating regular Z-codes to circular codes and codes with f...

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Bibliographic Details
Main Authors: Van Do Long
Nguyen Huong Lam
Huy Phan Trung
Format: Article
Published: 1993
Series:Acta cybernetica 11 No. 1-2
Kulcsszavak:Számítástechnika, Kibernetika
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Online Access:http://acta.bibl.u-szeged.hu/12522
Description
Summary:In this paper we consider a subclass of circular codes called Z-codes. Some tests of Sardinas-Patterson type for Z-codes are given when they are finite , or regular languages. As consequences, we prove again the results of Beal and Restivo, relating regular Z-codes to circular codes and codes with finite synchronization delay. Also, we describe the structure of two-element Zcodes.
Physical Description:97-109
ISSN:0324-721X