Discussiones
Mathematicae General Algebra and Applications 21(2) (2001) 255-268
doi: 10.7151/dmgaa.1042
Jerzy Płonka
Mathematical Institute of the Polish Academy of Sciences
Kopernika 18, 51-617 Wrocław, Poland
e-mail: jersabi@wp.pl
Let B be the variety of Boolean algebras of type t_{b}:{+,·,˘}® N, where t_{b}(+) = t_{b}(·) = 2 and t_{b}(˘) = 1. In this paper we characterize the lattice L(B_{b}) of all subvarieties of the biregularization of the variety B.
Keywords: subdirectly irreducible algebra, lattice of subvarieties, Boolean algebra, biregular identity.
2000 Mathematics Subject Classification: 08B15.
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Received 24 September 2001