# Search results for: Anna Chwastyk

Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 235-243

Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 235-243

A non-empty set X of a carrier A of an algebra A is called Q-independent if the equality of two term functions f and g of the algebra A on any finite system of elements a₁,a₂,...,aₙ of X implies f(p(a₁),p(a₂),...,p(aₙ)) = g(p(a₁),p(a₂),...,p(aₙ)) for any mapping p ∈ Q. An algebra B is a retract of A if B is the image of a retraction (i.e. of an idempotent endomorphism of B). We investigate Q-independent...