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Context-free pairs of groups I: Context-free pairs and graphs

โœ Scribed by Tullio Ceccherini-Silberstein; Wolfgang Woess


Book ID
113582487
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
460 KB
Volume
33
Category
Article
ISSN
0195-6698

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๐Ÿ“œ SIMILAR VOLUMES


Context-free languages and random walks
โœ Wolfgang Woess ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 435 KB

The Green function of an arbitrary, finitely supported random walk on a discrete group with context-free word problem is algebraic. It is shown how this theorem can be deduced from basic results of formal language theory. Context-free groups are precisely the finite extensions of free groups.