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Fri, 9 May 2008
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arXiv:0803.0676

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Title: Spaces of $\mathbb R$ - places of rational function fields
Authors: MichaƂ Machura, Katarzyna Osiak
Categories: math.AC Commutative Algebra (math.GN General Topology)
Comments: 16 pages
MSC: 12D15; 14P05

Abstract: In the paper an answer to a problem "When different orders of R(X) (where R is a real closed field) lead to the same real place ?" is given. We use this result to show that the space of $\mathbb R$-places of the field $\textbf{R}(Y)$ (where \textbf{R} is any real closure of $\mathbb R(X)$) is not metrizable space. Thus the space $M(\mathbb R(X,Y))$ is not metrizable, too.

Owner: Michal Machura
Version 1: Wed, 5 Mar 2008 15:03:58 GMT

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