## V. Koubek, J. Sichler

*Finitely generated almost universal varieties of $0$-lattices *

Comment.Math.Univ.Carolinae 46,2 (2005) 301-325. **Abstract:**A concrete category $\Bbb K$ is (algebraically) {universal} if any category of algebras has a full embedding into $\Bbb K$, and $\Bbb K$ is {almost universal} if there is a class $\Cal C$ of $\Bbb K$-objects such that all non-constant homomorphisms between them form a universal category. The main result of this paper fully characterizes the finitely generated varieties of $0$-lattices which are almost universal.

**Keywords:** (algebraically) universal category, finite-to-finite universal category, almost universal category, $0$-lattice, variety of $0$-lattices

**AMS Subject Classification:** Primary 18B15, 06B20; Secondary 08A35

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