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Real commutative algebra. I: Places. (English) Zbl 0443.12009


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
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