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Mat. Tr., 1999 Volume 2, Number 1, Pages 72–120 (Mi mt147)

Near Regularly-Prüfer Rings

Yu. L. Ershov

Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences

Abstract: In the present article, we construct the theory of near Boolean families of valuation rings which extends the corresponding theory for Boolean families. We establish the fact that the local-global principle (LGP) for such families is effectively elementary. We indicate sufficient conditions for 1-embeddability of holomorphy rings of near Boolean families that possess the LGP property. By way of application, we prove that the elementary theory of the ring of integrably totally $p$-adic integers and the elementary theory of the class of all closed subrings of almost all algebraic numbers are decidable.

Key words: (near) Boolean family of valuation rings, (near) regularly-Prüfer ring, local-global principle.

UDC: 510.53+512.52

Received: 26.02.1998


 English version:
Siberian Advances in Mathematics, 1999, 9:1, 1–45

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