Free entropic groupoids
Free groupoids in varieties determined by a short equation
Free groupoids with axioms of the form and/or .
Free groupoids with . II.
Free Objects in Primitive Varieties of N-groupoids
Free -distributive lattice over an -element chain.
Free Suslin algebras
Free systems of algebras and ultraclosed classes.
Free Term Algebras
We interoduce a new characterization of algebras of normal forms of term rewriting systems [35] as algerbras of term free in itself (any function from free generators into the algebra generates endomorphism of the algebra). Introduced algebras are free in classes of algebras satisfying some sets of equalities. Their universes are subsets of all terms and the denotations of operation symbols are partially identical with the operations of construction of terms. These algebras are compiler algebras...
Full subdirect and weak direct products of algebras
Functorial algebras and automata
Functorial uniform reducibility