On a simple one-element extension of left zero semigroups
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Sin Min Lee (1980)
Commentationes Mathematicae Universitatis Carolinae
Josef Niederle (1998)
Mathematica Bohemica
The structure of automorphisms of planar lattices is analyzed.
J. Płonka (1979)
Colloquium Mathematicae
Zhurkov, S.V., Pinus, A.G. (2003)
Sibirskij Matematicheskij Zhurnal
Jan Chvalina (1980)
Archivum Mathematicum
Emília Halušková (2007)
Mathematica Slovaca
Levitz, Hilbert, Nichols, Warren (1988)
International Journal of Mathematics and Mathematical Sciences
Pinus, A.G. (2000)
Siberian Mathematical Journal
Pinus, A.G., Mordvinov, Ya.L. (2002)
Sibirskij Matematicheskij Zhurnal
Miroslav Novotný (2006)
Czechoslovak Mathematical Journal
Mono-unary algebras may be used to construct homomorphisms, subalgebras, and direct products of algebras of an arbitrary type.
Jana Mervartová (1983)
Archivum Mathematicum
G. Grätzer, J. Płonka, A. Sekanina (1970)
Colloquium Mathematicae
Matatyahu Rubin (1980)
Archiv für mathematische Logik und Grundlagenforschung
Pinus, A.G. (2006)
Sibirskij Matematicheskij Zhurnal
Kazimierz Głazek (1971)
Colloquium Mathematicae
Danica Jakubíková-Studenovská (1980)
Mathematica Slovaca
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