Properties of a stability for positive Jonsson theories

Abstract

Actually, we study the connections of the Δ-PM-theories with their centers in the enrich signature. The properties of various companions of some Δ-PM-theories and their connection with this theory are considered on the language of the central types of positive Jonsson theory.

Keywords

• Jonsson theory
• existentially closed model
• forking
• central type
• the syntactic and semantic similarity of Jonsson theories