1. On some constructions of algebraic objects Creator: Novotný, Miroslav Format: bez média and svazek Type: model:article and TEXT Subject: algebra, homomorphism, subalgebra, direct product, variety, and mono-unary algebra Language: English Description: Mono-unary algebras may be used to construct homomorphisms, subalgebras, and direct products of algebras of an arbitrary type. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public