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Free subsemigroups in topological semigroups

โœ Scribed by Vadym Doroshenko

Publisher
Springer
Year
2009
Tongue
English
Weight
288 KB
Volume
79
Category
Article
ISSN
0037-1912

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๐Ÿ“œ SIMILAR VOLUMES

Free and almost-free subsemigroups of a
Free and almost-free subsemigroups of a free semigroup
โœ Ronald V. Book ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 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