Language-theoretic aspects of string replication Footnote^∗
^∗Research supported by the Academy of Finland, Project 11281

Valeria Mihalache Faculty of Mathematics, University of Bucharest, Str. Academiei 14, Bucharest, 70109, Romania

Arto Salomaa Academy of Finland Turku Centre for computer science, Lemminkäisenkatu 14 A, 4th Floor, Turku, 20520, Finland

Abstract

The so-called replication operation is studied in the case when several insertion contexts consisting of letters are used, as well as in the case when this operation is applied to several strings. Some striking differences, depending on the technical details of the setup, are observed in the generative power of this operation.

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^∗Research supported by the Academy of Finland, Project 11281

^∗∗Current address: Turku Centre for Computer Science (TUCS), Lemminkaisenkatu 14 A, 4th Floor. 20520, Turku. Finland.

^∗Research supported by the Academy of Finland, Project 11281

^∗∗Current address: Turku Centre for Computer Science (TUCS), Lemminkaisenkatu 14 A, 4th Floor. 20520, Turku. Finland.

Notes

^∗Research supported by the Academy of Finland, Project 11281

^∗∗Current address: Turku Centre for Computer Science (TUCS), Lemminkaisenkatu 14 A, 4th Floor. 20520, Turku. Finland.

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Language-theoretic aspects of string replication Footnote^∗
^∗Research supported by the Academy of Finland, Project 11281

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Language-theoretic aspects of string replication Footnote∗∗Research supported by the Academy of Finland, Project 11281

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Language-theoretic aspects of string replication Footnote^∗
^∗Research supported by the Academy of Finland, Project 11281