Levels of Non-Real Function Fields of Real Rational Surfaces

DOI10.2307/2374845zbMath0748.12001OpenAlexW2316847604MaRDI QIDQ3978106

R. Sujatha, Raman Parimala

Publication date: 25 June 1992

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

Full work available at URL: https://doi.org/10.2307/2374845

zbMATH Keywords

étale cohomologysum of squareslevelnon-real function field of a rational surface

Mathematics Subject Classification ID

Rational and ruled surfaces (14J26) (K)-theory of quadratic and Hermitian forms (11E70) Fields related with sums of squares (formally real fields, Pythagorean fields, etc.) (12D15) Real algebraic and real-analytic geometry (14P99)

Related Items

Levels of function fields of surfaces over number fields ⋮ The Witt group of real surfaces ⋮ Witt groups of real projective surfaces ⋮ Real rational surfaces without a real point