A context-free and a 1-counter geodesic language for a Baumslag-Solitar group

Publication Type:
Journal Article
Theoretical Computer Science, 2005, 339 (2-3), pp. 344 - 371
Issue Date:
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We give a language of unique geodesic normal forms for the Baumslag-Solitar group BS(1,2) that is context-free and 1-counter. We discuss the classes of context-free, 1-counter and counter languages, and explain how they are inter-related. © 2005 Elsevier B.V. All rights reserved.
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