Induced isomorphisms of certain ternary semigroups
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Antoni Chronowski, Miroslav Novotný (1995)
Archivum Mathematicum
Pavel Burda (1977)
Časopis pro pěstování matematiky
Dalibor Klucký (1995)
Mathematica Bohemica
In the paper the invariant (geometrical) character of some properties of natural planar ternary rings is shown by using isotopic transformations.
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