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On residual algebraic torsion extensions of a valuation on a field K to K(x1,...,xn)

DOI: 10.1186/1687-1812-2013-46

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Abstract:

Let v be a valuation of a field K with value group Gv and residue field kv, w be an extension of v to K(x). w is called a residual algebraic torsion extension of v to K(x) if kw/kv is an algebraic extension and Gw/Gv is a torsion group. In this paper a residual algebraic torsion extension of v to K(x1,...,xn) is described and its certain properties are investigated. Also the existence of a residual algebraic torsion extension of a valuation on K to K(x1,...,xn) with given residue field and value group is studied.

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