Each concrete category has a representation by paracompact topological spaces
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Václav Koubek (1974)
Commentationes Mathematicae Universitatis Carolinae
Jiří Adámek, Václav Koubek, Jan Reiterman (1981)
Czechoslovak Mathematical Journal
A. Pultr, J. Sichler (1997)
Semigroup forum
Václav Koubek, Jiří Sichler (1998)
Czechoslovak Mathematical Journal
Any finitely generated regular variety of distributive double -algebras is finitely determined, meaning that for some finite cardinal , any subclass of algebras with isomorphic endomorphism monoids has fewer than pairwise non-isomorphic members. This result follows from our structural characterization of those finitely generated almost regular varieties which are finitely determined. We conjecture that any finitely generated, finitely determined variety of distributive double -algebras...
Vitale, Enrico M. (2001)
Theory and Applications of Categories [electronic only]
Barto, Libor, Zima, Petr (2005)
Theory and Applications of Categories [electronic only]
Rosický, J., Vitale, E.M. (2001)
Homology, Homotopy and Applications
Friedhelm Schwarz (1990)
Commentationes Mathematicae Universitatis Carolinae
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