-systems of unary algebras. I: On maximal and greatest -classes of the direct product of unary algebras
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Imrich Abrhan, Ladislav Satko (1994)
Mathematica Slovaca
Imrich Abrhan, Ladislav Satko (1994)
Mathematica Slovaca
Robert Šulka (1979)
Mathematica Slovaca
Danica Jakubíková-Studenovská (2005)
Czechoslovak Mathematical Journal
The aim of the present paper is to describe all connected monounary algebras for which there exists a representation by means of connected monounary algebras which are retract irreducible in the class (or in ).
Oldřich Kopeček (1978)
Archivum Mathematicum
Danica Jakubíková-Studenovská (1996)
Czechoslovak Mathematical Journal
Danica Jakubíková-Studenovská (1997)
Czechoslovak Mathematical Journal
Danica Jakubíková-Studenovská (1999)
Czechoslovak Mathematical Journal
Danica Jakubíková-Studenovská (1997)
Czechoslovak Mathematical Journal
Danica Jakubíková-Studenovská (2006)
Mathematica Slovaca
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