## Silvia Barbina, Domenico Zambella

*A viewpoint on amalgamation classes*

Comment.Math.Univ.Carolin. 51,4 (2010) 681-691.**Abstract:**We give a self-contained introduction to universal homogeneous models (also known as rich models) in a general context where the notion of morphism is taken as primitive. We produce an example of an amalgamation class where each connected component has a saturated rich model but the theory of the rich models is not model-complete.

**Keywords:** model theory, universal homogeneous model, model companion, amalgamation class

**AMS Subject Classification:** 03C10 03C07 03C30

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