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Algebraically pure morphisms. (English) Zbl 0416.13005


MSC:

13B02 Extension theory of commutative rings
14B12 Local deformation theory, Artin approximation, etc.
03C20 Ultraproducts and related constructions
13H99 Local rings and semilocal rings
12E12 Equations in general fields
13B25 Polynomials over commutative rings
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