Abstract:
In given work are considered model-theoretical properties of companions of (n1; n2)-Jonsson theory. Also
were considered a communications between center and (n1; n2)-Jonsson theory. Herewith considered theories
is perfect in the sense of the existence of appropriate model companion. In given article introduced new
concepts: (n1; n2)-Jonsson theory, D -model companion. New results are shown with respect to model
companions of -Jonsson theory and 1-perfect 1-Jonsson theory.
