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標題: Prefix-primitivity-preserving homomorphisms
作者: Huang, C.C.
Yu, S.S.
關鍵字: homomorphism;p-primitive;primitive;square-free;bifix code;morphisms
Project: Discrete Mathematics
期刊/報告no:: Discrete Mathematics, Volume 308, Issue 7, Page(s) 1025-1032.
This paper aims to investigate homomorphisms which preserve p-primitive languages. A characterization of p-primitivity-preserving homomorphisms can be detected within finite steps. Also the set of square-freeness-preserving homomorphisms is shown to be a proper subfamily of the set of p-primitivity-preserving homomorphisms. For homomorphisms over an alphabet X with vertical bar X vertical bar=2, it is also shown that the set of p-primitivity-preserving homomorphisms is a proper subfamily of the set of primitivity-preserving homomorphisms. But it is conjectured to also hold for homomorphisms over an alphabet with more than two letters. (C) 2007 Elsevier B.V. All rights reserved.
ISSN: 0012-365X
DOI: 10.1016/j.disc.2007.03.057
Appears in Collections:資訊科學與工程學系所

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