Geodesic
Positivеly prime models over a~normal basic set
Sibirskie èlektronnye matematičeskie izvestiâ, Tome 4 (2007), pp. 596-604.

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For given universal domain $C$, a set $\mathrm{BF}$ of normal formulas, and $A\subseteq C$, we construct substructures $B$ of $C$ with the following properties: (a) $A\subseteq B$; (b) for each $a\in B$ the type ${\rm tp}(a;(B\setminus\{a\}))$ is based by formulas from $\mathrm{BF}$. The existence and uniqueness theorems are proven. This is a generalization of the known results on the injective hulls in the variety of the modules in case when the theory $\mathrm{Th}(C^\omega)$ is stable. 
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     author = {E. A. Palyutin},
     title = {Positiv{\cyre}ly prime models over a~normal basic set},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
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E. A. Palyutin. Positivеly prime models over a~normal basic set. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 4 (2007), pp. 596-604. http://geodesic.mathdoc.fr/item/SEMR_2007_4_a31/

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