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Algebra Logika, 2002 Volume 41, Number 6, Pages 682–712 (Mi al202)

Multi-Valued Fields. II

Yu. L. Ershov

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

Abstract: The main model-theoretic results on multi-valued fields with near Boolean families of valuation rings obtained in authoor's book “Multi-Valued Fields” [in Russian], Nauch. Kniga, Novosibirsk (2000) (Ch.4, Sec.  4.6) are generalized along two lines: we weaken the restriction on being absolutely unramified to a condition of being finite for an absolute ramification index, and we combine, through context, Theorems 4.6.2 and 4.6.4 (4.6.3 and 4.6.5).

Keywords: multi-valued field, Boolean family of valuation rings, absolute ramification index.

UDC: 510.53:512.52

Received: 15.10.2001


 English version:
Algebra and Logic, 2002, 41:6, 374–390

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