On preordered fields related Hilbert's 17th problem
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Publication:582325
DOI10.1007/BF02571332zbMath0691.12009OpenAlexW1979932231MaRDI QIDQ582325
Publication date: 1991
Published in: Mathematische Zeitschrift (Search for Journal in Brave)
Full work available at URL: https://eudml.org/doc/174214
Fields related with sums of squares (formally real fields, Pythagorean fields, etc.) (12D15) Ordered fields (12J15)
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