Round quadratic forms under algebraic extensions

DOI10.2140/PJM.1991.147.213zbMath0671.10016OpenAlexW2088984255MaRDI QIDQ1119678

Burkhard Alpers

Publication date: 1991

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1991.147.213

zbMATH Keywords

quadratic formsgoing-downgoing-upbirigid elementsnon-formally real fieldsround forms

Mathematics Subject Classification ID

Quadratic forms over general fields (11E04) Algebraic theory of quadratic forms; Witt groups and rings (11E81) Fields related with sums of squares (formally real fields, Pythagorean fields, etc.) (12D15) Field extensions (12F99)

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