| Autor: |
SOMNUEK WORAWISET, KOPPITZ, JÖRG, SOMCHIT CHOTCHAISTHIT |
| Předmět: |
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| Zdroj: |
Mathematica Slovaca; Apr2019, Vol. 69 Issue 2, p371-380, 10p |
| Abstrakt: |
This paper deals with semihypergroups of order two from the point of view of the model theory. We use basic knowledge to show that there are exactly 17 non-isomorphic semihypergroups of order two. Each of them corresponds in a canonical way to a semigroup of order three. We classify all of them by generalized identities a concept introduced by Lyapin. In particular, we classify all non-group semigroups of order three by one generalized identity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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