Authors: W. A. Dudek, V. V. Mukhin
Abstract
We prove that we can adjoint an n-ary neutral element to an n-ary semigroup iff this semigroup is derived from a binary semigroup.
W.A.Dudek V.
Institute of Mathematics
Technical University
Wybrzeze Wyspianskiego 27
50-370 Wroclaw
Poland
e-mail: dudek@im.pwr.wroc.pl
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V. V. Mukhin
Department of Mathematics,
Cherepovets State University,
162 600 Cherepovets,
Russia.
E-mail:
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