Quadratic forms becoming isotropic on an extension

zbMath0840.11016MaRDI QIDQ1902492

Eva Bayer-Fluckiger

Publication date: 7 February 1996

Published in: L'Enseignement Mathématique. 2e Série (Search for Journal in Brave)

zbMATH Keywords

surveysums of squaresnorm principlesPythagoras numbersanisotropic quadratic formSpringer theoremsimilarity factorsubform theorem

Mathematics Subject Classification ID

Sums of squares and representations by other particular quadratic forms (11E25) Quadratic forms over general fields (11E04) Algebraic theory of quadratic forms; Witt groups and rings (11E81)

Related Items

Representation of polynomials as products of two values of a quadratic form ⋮ Some criteria for stably birational equivalence of quadratic forms