Dubois, D. W. Real commutative algebra. I: Places. (English) Zbl 0443.12009 Rev. Mat. Hisp.-Am., IV. Ser. 39, 57-65 (1979). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 ReviewsCited in 2 Documents MSC: 12D15 Fields related with sums of squares (formally real fields, Pythagorean fields, etc.) 12J15 Ordered fields 12J20 General valuation theory for fields 14Pxx Real algebraic and real-analytic geometry 11P05 Waring’s problem and variants 13A18 Valuations and their generalizations for commutative rings Keywords:real place; ordered field; real variety; sums of squares; Gleyzal rank; Hilbert’s 17th problem Citations:Zbl 0438.14001; Zbl 0275.14018 PDFBibTeX XMLCite \textit{D. W. Dubois}, Rev. Mat. Hisp.-Am., IV. Ser. 39, 57--65 (1979; Zbl 0443.12009) Full Text: EuDML