Unary semigroups with an associate subgroup
A subgroup H of a regular semigroup S is said to be an associate subgroup of S if for every s ∈ S, there is a unique associate of s in H. An idempotent z of S is said to be medial if czc = c, for every c product of idempotents of S. Blyth and Martins established a structure theorem for semigroups wi...
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| Format: | article |
| Language: | eng |
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2008
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| Online Access: | http://hdl.handle.net/1822/11004 |
| Country: | Portugal |
| Oai: | oai:repositorium.sdum.uminho.pt:1822/11004 |