Formally real fields, pythagorean fields, C-fields and W-groups
DOI10.1007/BF02571260zbMath0692.12005OpenAlexW2016004252WikidataQ114233797 ScholiaQ114233797MaRDI QIDQ583279
Publication date: 1990
Published in: Mathematische Zeitschrift (Search for Journal in Brave)
Full work available at URL: https://eudml.org/doc/174192
Witt ringformally real fieldinvolutions in Galois groupsorderings of fieldspythagorean fieldsrelative real closuresuperpythagorean fields
Separable extensions, Galois theory (12F10) Algebraic theory of quadratic forms; Witt groups and rings (11E81) Fields related with sums of squares (formally real fields, Pythagorean fields, etc.) (12D15) Ordered fields (12J15) Forms over real fields (11E10)
Related Items (10)
Cites Work
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- Pythagorean fields and the Kaplansky radical
- When are Witt rings group rings? II
- Orthogonal representations of Galois groups, Stiefel-Whitney classes and Hasse-Witt invariants.
- Euklidische Körper und euklidische Hüllen von Körpern.
- Quadratic Forms Over Formally Real Fields and Pythagorean Fields
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