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On finitely generated subsemigroups of a free semigroup

✍ Scribed by Al. A. Markov


Book ID
110560186
Publisher
Springer
Year
1971
Tongue
English
Weight
316 KB
Volume
3
Category
Article
ISSN
0037-1912

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πŸ“œ SIMILAR VOLUMES


Free and almost-free subsemigroups of a
✍ Ronald V. Book πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science 🌐 English βš– 381 KB

A subsemigroup S of a free semigroup F(Z) is almost-free if there is a free subsemigroup T such that S c T c F(2;) and TkS is finite. It is shown that it is decidable whether a subsemigroup generated by a regular subset of F(Z) is almost-free. Sufficient conditions are given such that if a family F