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On Rationality of Algebraic Function Fields
Published online by Cambridge University Press: 20 November 2018
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Let A be an algebraic function field with a constant field k which is an algebraic number field. For each prime p of k, we consider a local completion kp and set Ap = Ak ꕕ kp. Then we have the question:
Is it true that A/k is a rational function field (i.e., A is a purely transcendental extension of k) if Ap/kp is so for every p ? In this note we shall discuss the question in a slightly different and hence easier case.
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- Copyright © Canadian Mathematical Society 1969
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